WO2018041193A1

WO2018041193A1 - Method, device, and computer storage medium for usb device redirection

Info

Publication number: WO2018041193A1
Application number: PCT/CN2017/099843
Authority: WO
Inventors: 万能飞
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-09-05
Filing date: 2017-08-31
Publication date: 2018-03-08
Also published as: CN107797947A

Abstract

A method, a device, and a computer storage medium for USB device redirection are provided. The method comprises: determining, according to location information of a USB device selected from a USB device list and location information corresponding to a physical device object established by a hub, a USB device to be redirected (S101); and transmitting a device information structure corresponding to the USB device to be redirected to a cloud desktop, such that the cloud desktop completes, according to the device information structure, a corresponding redirection process of the USB device to be redirected (S102). In other words, during the USB device redirection process, the USB device to be redirected can be determined according to the location information of the USB device selected from the USB device list and the location information corresponding to the physical device object established by the hub, and the redirection operation is performed on the determined USB device to be redirected. In contrast with the prior art in which the terminal needs to locally install a device driver respectively corresponding to an inserted USB device in order to determine the USB device to be redirected so as to perform a redirection, the storage burden of the terminal is reduced, the redirection process is simplified, and user experience is improved.

Description

USB device redirection method and device and computer storage medium

Technical field

The present disclosure relates to the field of communications, and in particular, to a USB device redirection method and apparatus, and a computer storage medium.

Background technique

USB (Universal Serial Bus) device redirection provides an end-to-end access solution that maps USB peripherals on physical terminals to cloud desktops, ie USB device redirection is a cloud desktop environment A technology that provides functions for USB devices on a physical terminal. USB device redirection forwards all I/O requests of applications in the cloud desktop to the USB peripherals of the physical terminal through the network, so that the USB device drivers and applications in the cloud desktop do not perceive the controlled The USB device is actually remote, making the user experience of the USB device in the cloud desktop environment closer to the physical machine. And the redirection function is automatically or manually implemented by establishing a complete control link between the cloud desktop and the physical terminal, so that the use of the USB peripheral is more flexible and convenient. Currently, when establishing and canceling the USB device redirection function, it is necessary to locally install each USB device driver to determine the USB device to be redirected. However, in actual use, the user only uses the redirected USB device in the cloud desktop, so it is only necessary to install the device driver of the redirected USB device in the cloud desktop, and install each device that inserts the USB device locally in the terminal. The driver not only increases the storage pressure of the terminal, but also installs the device driver of the USB device multiple times in the terminal, which makes the user operation cumbersome and affects the user experience.

Summary of the invention

The embodiment of the invention provides a USB device redirection method and device. The main technical problem is that when the USB device is redirected, the terminal needs to locally install the device driver inserted into the USB device, so that the terminal has high storage pressure and user experience. Bad question.

The embodiment of the invention provides a USB device redirection method, including:

Determining the USB device to be redirected according to the location information of the USB device selected from the USB device list and the location information corresponding to the physical device object created by the hub;

Send the device information structure corresponding to the USB device to be redirected to the cloud desktop, so that the cloud desktop is based on the device. The information structure completes the corresponding redirection process of the USB device to be redirected.

The embodiment of the invention further provides a USB device redirection device, comprising:

a USB device determining module to be used for determining a USB device to be redirected according to location information of the USB device selected from the USB device list and location information corresponding to the physical device object created by the hub;

The device information structure sending module is configured to send the device information structure corresponding to the USB device to be redirected to the cloud desktop, so that the cloud desktop completes the corresponding redirection processing of the USB device to be redirected according to the device information structure.

The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the USB device redirection method according to any one of the foregoing.

The beneficial effects of the embodiments of the present invention are:

According to an embodiment of the present invention, a USB device redirection method, apparatus, and computer storage medium determine a USB device to be redirected by using location information of a USB device selected from a USB device list and location information corresponding to a physical device object created by a hub; The device information structure corresponding to the USB device to be redirected is sent to the cloud desktop, so that the cloud desktop completes the corresponding redirection process of the USB device to be redirected according to the device information structure. That is, in the USB device redirection process, the USB device to be redirected can be determined by the location information of the USB device selected from the USB device list and the location information corresponding to the physical device object created by the hub, and the determined to be redirected The USB device performs a redirection operation. Compared with the prior art, when performing USB device redirection, the terminal needs to locally install the device driver corresponding to each USB device to determine the manner in which the USB device to be redirected is redirected, thereby reducing the storage pressure of the terminal and making The redirection process is simple and improves the user experience.

DRAWINGS

1 is a flowchart of a USB device redirection method according to Embodiment 1 of the present invention;

2 is a schematic diagram of a USB device redirection system according to Embodiment 2 of the present invention;

3 is a flowchart of a method for generating a USB list according to Embodiment 2 of the present invention;

4 is a flowchart of a USB device redirection method according to Embodiment 2 of the present invention;

5 is a schematic diagram of a USB device redirection device according to Embodiment 3 of the present invention;

FIG. 6 is a schematic diagram of another USB device redirection device according to Embodiment 3 of the present invention.

detailed description

The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

Embodiment 1:

This embodiment provides a USB device redirection method. Referring to FIG. 1, the method specifically includes:

Step S101: Determine, according to the location information of the USB device selected from the USB device list and the location information corresponding to the physical device object created by the hub, the USB device to be redirected;

Step S102: The device information structure corresponding to the USB device to be redirected is sent to the cloud desktop, so that the cloud desktop completes the corresponding redirection process of the USB device to be redirected according to the device information structure.

Specifically, in the process of performing USB device redirection, the location information corresponding to the device information structure corresponding to the USB device selected from the USB device list is compared and matched with the location information corresponding to the physical device object created by the hub, The USB device to be redirected can be determined, and then the determined redirected USB device is redirected. In addition, in this embodiment, the determined USB device to be redirected may be a USB device that needs to be redirected by the USB device, or a USB device that needs to cancel the USB device redirection function, which may be specifically selected and set according to requirements.

For the step S101, determining, according to the location information of the USB device selected from the USB device list and the location information corresponding to the physical device object created by the hub, the USB device to be redirected, including: device information corresponding to the USB device selected from the USB device list. Obtaining location information of the USB device in the structure; enumerating the hub through the physical bus, acquiring location information corresponding to the physical device object created by each hub; matching the location information with the location information of the USB device selected from the USB device list The USB device corresponding to the physical device object acts as the USB device to be redirected.

Specifically, when performing USB device redirection, the USB device may be selected from the USB device list of the client, and then the device information structure corresponding to the selected USB device is obtained, and the device information structure is parsed to obtain the selection. Location information corresponding to the USB device. In this embodiment, the USB device is selected according to the needs of the USB device list of the client, and the user may manually select the USB device, such as in the USB device list displayed on the display page of the redirect setting of the client. The USB device identifier performs a trigger operation such as clicking, and performs USB device selection; the USB device selection trigger command may also be set, and the system automatically selects the corresponding USB device according to the USB device identification information in the USB device selection trigger command; the USB device identifier Specifically, it may be a name of the USB device or the like that can identify the information of the USB device. Enumerate from the physical bus after getting the location information of the USB device selected from the USB device list A hub (HUB) acquires all physical device objects of USB devices created by each hub, and then acquires location information corresponding to each physical device object. The obtaining the location information corresponding to the physical device object may be: sending the location information acquisition message to the physical device corresponding to the physical device object, and acquiring the location information corresponding to the physical device object. After acquiring the location information corresponding to the physical device object, comparing the location information corresponding to the physical device object with the location information parsed from the device information structure, and matching the location information with the location information of the device information structure The USB device corresponding to the device object acts as the USB device to be redirected. The location information corresponding to the physical device object is the location information of the physical device corresponding to the physical device object, such as the location information of the USB device corresponding to the physical device object. That is, in this embodiment, it is not necessary to install the device driver corresponding to the USB device created by each hub in the terminal to determine the USB device to be redirected, and only need to enumerate all the physical device objects of the USB device created by each hub from the physical bus. The location information of the physical device object is matched with the location information corresponding to the device information structure of the selected USB device, and the USB device to be redirected can be determined.

In addition, in this embodiment, the processing operation of the USB device to be redirected is determined according to the location information of the USB device selected from the USB device list and the location information corresponding to the physical device object created by the hub, and specifically, the specific setting may be set on the client. The driver performs processing, and the driver can be specifically named "quick-cut driver".

In this embodiment, the process of generating the USB device list specifically includes: enumerating all the USB devices created by the terminal hub, and obtaining the device information structure corresponding to each USB device, and then generating the USB device identifier and USB corresponding to each USB device. The USB device list corresponding to the device information structure of the device is stored in the client. Specifically, the USB device list may be displayed on a display interface such as a USB device redirection setting interface of the client.

Further, in this embodiment, the device information structure of the USB device is generated by: collecting hub information by enumerating a hub from the physical bus; acquiring USB device information according to the hub information; and generating device information according to the hub information and the USB device information. The structure; the device information structure includes location information of the USB device.

Specifically, the USB physical bus driver on the terminal can be opened by the client, and the hub is obtained by enumerating the hub from the physical bus through the USB physical bus driver, and the hub information may specifically include the hub serial number information. And then, according to the hub information, sending a device information acquisition message to each hub, and acquiring device information of the USB device corresponding to each hub, where the device information specifically includes a VID (Vendor ID, manufacturer ID) and a PID (Product ID,) of the USB device. Product ID), device instance ID and corresponding HUB name and USB Information about the port information corresponding to the device. Then, the device information structure of the USB device is obtained according to the hub information and the device information.

Further, in the embodiment, when the device information of the USB device is acquired, the location information of the USB device cannot be directly obtained, and the location information of the USB device in the device information structure is generated by: determining the hub according to the hub information. Serial number information; determining the USB device port information according to the USB device information; splicing the USB device port information and the hub serial number information to obtain the location information of the USB device. Specifically, the device can be patched according to the hub serial number information in the obtained hub information and the USB device port information in the USB device information, to obtain the location information of the specific USB device.

In this embodiment, when the USB device list is generated, the USB device list may be generated according to the USB device list setting operation of the user, or the USB device list may be automatically generated when the USB device list generation condition is met. When the USB device list generation condition is met, the USB device list is automatically generated. Specifically, when the terminal has a new USB device inserted, the USB device list generation operation is triggered to generate a new USB device list; and the USB device device may also be set. A timer is generated to periodically generate a new list of USB devices when the USB device enumeration timer is triggered. Further, after generating a new USB device list, the new USB device list can be replaced with the USB device list stored by the client and displayed on the display interface specified on the client.

Further, in this embodiment, after determining the USB device to be redirected, the method further includes: loading the USB device to be redirected by a preset unified device driver. Specifically, after the USB device to be redirected is determined, the determined USB device to be redirected may be manually inserted and removed, and the device information of the USB device to be redirected is changed, for example, the PID and VID information of the USB device are changed. The USB device to be redirected is loaded with a unified device driver pre-installed in the terminal. The unified device driver may specifically be a device driver corresponding to the changed device information. The unified device driver is installed locally on the terminal and serves as a device driver corresponding to each USB device to be redirected, so that each USB device to be redirected is redirected according to the unified device driver, and does not need to install each USB device to be redirected each time. Corresponding device driver. In addition, when the USB device to be redirected is the first USB device that needs to be redirected in the current redirecting system, the unified device driver may be installed and loaded in real time after determining that it is the USB device to be redirected. The unified device driver is used for redirection processing. By using the unified device driver as the device driver corresponding to each USB device to be redirected, the storage pressure of the terminal can be reduced, and the convenience and versatility of using the USB device in the cloud desktop is improved.

In step S102, the device information structure corresponding to the USB device to be redirected is sent to the cloud desktop, so that The cloud desktop completes the corresponding redirection process of the USB device to be redirected according to the device information structure. Specifically, the device information structure corresponding to the USB device to be redirected is sent to the cloud desktop, and the desktop creates the virtual USB device corresponding to the USB device to be redirected on the cloud desktop according to the device information structure of the USB device to be redirected. The virtual USB device is installed on the virtual bus line of the cloud desktop, and the device driver corresponding to the USB device to be redirected is installed on the cloud desktop to complete the redirection of the USB device to be redirected. After the redirect is completed, the cloud desktop returns the redirect result to the terminal, and communicates with the terminal for data transmission. Alternatively, the cloud desktop can cancel the redirection function of the USB device on the cloud desktop according to the USB device to be redirected, and the cloud desktop completes the corresponding redirection processing of the USB device to be redirected according to the device information structure, and can be redirected according to the USB to be redirected. The type of device is specifically set.

The USB device redirection method provided by the embodiment of the present invention determines the USB device to be redirected according to the location information of the USB device selected from the USB device list and the location information corresponding to the physical device object created by the hub; the USB device to be redirected The corresponding device information structure is sent to the cloud desktop, so that the cloud desktop completes the corresponding redirection process of the USB device to be redirected according to the device information structure. That is, in the USB device redirection process, the USB device to be redirected can be determined by the location information of the USB device selected from the USB device list and the location information corresponding to the physical device object created by the hub, and the determined to be redirected The USB device performs a redirection operation. Compared with the prior art, when performing USB device redirection, the terminal needs to locally install the device driver corresponding to each USB device to determine the manner in which the USB device to be redirected is redirected, thereby reducing the storage pressure of the terminal and making The redirection process is simple and improves the user experience.

Embodiment 2:

This embodiment provides a specific USB device redirection system. Referring to FIG. 2, the USB device redirection system includes a cloud desktop and a terminal, where the cloud desktop generally includes a client service program, an application, a device driver, and a virtual bus. Terminals typically include Terminal Services programs, unified device drivers, USB physical bus drivers, and USB physical devices, as well as cloud desktop clients and fast-cut drivers. The cloud desktop and the terminal establish a virtual channel through the client service program and the terminal service program, and perform redirection processing. In addition, the terminal may specifically be a thin terminal.

Based on the foregoing USB device redirection system, this embodiment provides a method for generating a USB device list. Referring to FIG. 3, the method specifically includes:

Step S301, triggering a USB device list refresh operation.

Specifically, the cloud desktop client on the terminal is provided with a USB device enumeration timer, when the USB device enumerates When the timer is triggered, the refresh operation of the USB device list is triggered; or after the terminal receives the new USB device insertion message, triggering the USB device to be triggered, that is, triggering the refresh operation of the USB device list.

In step S302, the USB device physical bus is opened.

Specifically, after triggering the USB device list refresh operation, the cloud desktop client opens the physical bus driver of the USB device on the terminal and obtains its handle; then sends a HUB acquisition message to the physical bus of the USB device to obtain the HUB information, and the HUB obtains The message may be an IOCTL message; the HUB information includes a HUB serial number, and the HUB serial number is stored after the HUB serial number is obtained.

In step S303, the HUB is enumerated.

Specifically, after the HUB information is obtained, the location information acquisition message is sent to each HUB according to the HUB information, and the device information of the USB device is requested. The location information acquisition message may be an IOCTL message. In addition, the device information of the USB device includes information such as a VID, a PID (a device instance ID, a HUB name corresponding to the USB device, and a port information corresponding to the USB device. In this manner, the device information of the USB device is obtained, and the USB device can be obtained. The device information other than the location information of the device may be obtained by splicing the location information of the USB device and the port information of the USB device.

Step S304, obtaining a device information structure of the USB device.

Specifically, the structure of the location information of the USB device is similar to the form of “Port_#0008.Hub_#0005”, wherein the data after “Port_#” indicates the port number of the HUB where the USB device is located, and the data after “Hub_#”. Indicates the serial number of the HUB where the USB device is located. Therefore, after obtaining the HUB information and the device information of the USB device, the location information of the USB device is obtained by splicing according to the HUB serial number in the HUB information and the port information in the device information of the USB device. Then, the location information and the VID, the PID, the device instance ID, and the name of the HUB where the USB device is located are used as the device information structure of the USB device. In this embodiment, in the process of generating the device information structure of the USB device, the device driver corresponding to the USB device is not required to be installed locally in the terminal, that is, the API (Application Programming Interface) is not dependent on the USB device driver. ) function, you can get all the information of the device information structure that generates the USB device. After the device information structure is generated, the USB device to be redirected is determined according to the device information structure.

Step S305, generating a USB device list display to the client.

Specifically, after generating the device information structure of the USB device, the identification information such as the name of the at least one USB device is arranged to obtain a USB device list, and the USB device list is displayed to the client; the USB Each USB device name in the device list corresponds to a device information structure. Specifically, when the identifier information such as the name of the USB device in the USB device list is selected, the device information structure corresponding to the USB device is located.

The method for generating a USB device list provided by this embodiment does not need to locally install a device driver corresponding to each USB device inserted in the terminal, and the hub information can be obtained by enumerating the hub from the physical bus, and Obtaining the USB device information according to the hub information, generating a device information structure of the USB device, and then generating a USB device list including the device identifier of the USB device, where the device identifier of the USB device corresponds to the device information structure of each USB device. Compared with the prior art, the device driver corresponding to each USB device inserted in the terminal is required to be installed, and the device information generating device information structure is obtained through the series of API functions corresponding to the USB device, thereby reducing the storage pressure of the terminal. The device information structure of the USB device can be conveniently obtained, and the user experience is improved.

Based on the foregoing USB device redirection system, this embodiment provides a specific USB device redirection method. Referring to FIG. 4, the method specifically includes:

Step S401, selecting a USB device name in the trigger USB device list.

Specifically, when the USB device redirection is required, select the USB device that needs to be redirected, and click the device identifier of the USB device in the USB device list, and the device identifier may specifically be a USB device name. After the user clicks on the USB device name, the terminal receives the user's click operation, and the cloud desktop client sends the device information structure of the USB device to the “quick-cut driver” in the client.

Step S402, determining a USB device to be redirected.

Specifically, after receiving the device information structure of the USB device sent by the cloud desktop client, the fast-cut driver enumerates all the physical device objects created by the HUB, and sequentially requests the location information corresponding to each physical device object, and then each The location information corresponding to the physical device object is compared with the location information in the device information structure of the received USB device to determine the USB device to be redirected.

Step S403, the USB device to be redirected is loaded with a preset unified device driver.

Specifically, after the USB device to be redirected is determined, the USB device to be redirected is subjected to software simulation insertion and removal. In addition, since the "quick-cut drive" HOOK handles the processing function of the PNP (Plug-and-Play) message in the HUB driver, the standby device is changed at the moment when the USB device to be redirected is subjected to software simulation insertion and removal. The PID and VID information of the directed USB device causes the USB device to be redirected to load a unified device driver pre-installed in the terminal. The unified device driver acts as a device driver for each USB device to be redirected The redirection process, that is, the redirection process of the USB device can be completed only by installing a unified device driver on the terminal; compared with the prior art, the device driver mode of each USB device to be redirected needs to be installed, and the terminal is reduced. The storage pressure makes the redirection process simple and improves the user experience.

Step S404: The device information structure of the USB device to be redirected is sent to the cloud desktop, and the redirection of the USB device to be redirected is completed.

Specifically, the device information structure of the USB device to be redirected is sent to the cloud desktop, so that the cloud desktop creates the USB corresponding to the USB device to be redirected on the cloud desktop according to the device information structure of the USB device to be redirected. The device completes the redirection of the USB device to be redirected. Then, after the redirect is completed, the cloud desktop returns the redirect result to the terminal, and communicates with the terminal for data transmission.

The USB device redirection method provided in this embodiment does not need to locally install the device driver corresponding to each USB device inserted in the terminal, and only needs to enumerate the physical device of the USB device created by the hub from the physical bus. The object, the location information corresponding to the physical device object is matched with the location information of the USB device selected by the user from the USB device list, thereby determining the USB device to be redirected. Compared with the device driver corresponding to each USB device inserted in the terminal, the device driver determines the manner of the USB device to be redirected, reduces the storage pressure of the terminal, and makes the redirection process simple and improves the user. Experience.

Embodiment 3:

The embodiment of the present invention provides a USB device redirection device. Referring to FIG. 5, the device includes: a USB device to be redirected determining module 51 and a device information structure transmitting module 52. Determining the USB device to be redirected from the location information of the USB device selected from the USB device list and the location information corresponding to the physical device object created by the hub; the device information structure sending module 52 is configured to configure the device information structure corresponding to the USB device to be redirected The system sends the cloud desktop to the cloud desktop, so that the cloud desktop completes the corresponding redirection processing of the USB device to be redirected according to the device information structure. Specifically, in the process of performing USB device redirection, the location information corresponding to the device information structure corresponding to the USB device selected from the USB device list and the location information corresponding to the physical device object created by the hub may be determined to be redirected. The USB device performs a redirection operation on the determined USB device to be redirected. In addition, in this embodiment, the determined USB device to be redirected may be a USB device that needs to be redirected by the USB device, or a USB device that needs to cancel the USB device redirection function, which may be specifically selected and set according to requirements.

In this embodiment, the to-be-redirected USB device determining module is further configured to: select from the USB device list. Obtaining the location information of the USB device in the device information structure corresponding to the USB device; enumerating the hub through the physical bus to obtain location information corresponding to the physical device object created by each hub; and selecting the location information and the USB selected from the USB device list The USB device corresponding to the physical device object whose location information of the device matches is used as the USB device to be redirected. Specifically, when performing USB device redirection, the USB device may be selected from the USB device list of the client, and then the device information structure corresponding to the selected USB device is obtained, and the device information structure is parsed to obtain the selection. Location information corresponding to the USB device. After obtaining the location information of the USB device selected from the USB device list, the hub is enumerated from the physical bus, and all the physical device objects created by each hub are acquired, and the location information corresponding to each physical device object is obtained. After acquiring the location information corresponding to the physical device object, the location information corresponding to the physical device object is compared with the location information parsed from the device information structure, and the location information is matched with the location information of the device information structure. The USB device corresponding to the physical device object acts as the USB device to be redirected. The function of the USB device determining module to be redirected in this embodiment can be completed by setting the specific driver.

Referring to FIG. 6, the USB device redirection device provided in this embodiment further includes a device information structure generating module 53, configured to: obtain the hub information by enumerating the hub from the physical bus; The hub information acquires the USB device information; the device information structure is generated according to the hub information and the USB device information; and the device information structure includes the location information of the USB device. Specifically, the USB physical bus driver on the terminal can be opened by the client, and the hub is obtained by enumerating the hub from the physical bus through the USB physical bus driver, and the hub information may specifically include the hub serial number information. And then sending a device information acquisition message to each hub according to the hub information, and acquiring device information of the USB device corresponding to each hub,

Further, the device information structure generating module in this embodiment is further configured to: determine hub serial number information according to the hub information; determine USB device port information according to the USB device information; and splicing the USB device port information and the hub serial number information to obtain the USB device Location information. Specifically, in the embodiment, when the device information of the USB device is obtained, the location information of the USB device cannot be directly obtained, and the specificity may be performed according to the hub serial number information in the hub information and the USB device port information in the USB device information. Cobble together to get the location information of the specific USB device.

Referring to FIG. 6, the USB device redirection device provided in this embodiment further includes a unified device driver loading module 54. The unified device driver loading module 54 is configured to: after determining the USB device to be redirected, make the USB device to be redirected. Load the default unified device driver. Specifically, after determining the USB device to be redirected, Specifically, the determined USB device to be redirected can be inserted and removed, and the device information such as the PID and the VID of the USB device to be redirected is changed, so that the USB device to be redirected loads the unified device driver pre-installed in the terminal. .

In this embodiment, the device information structure sending module 52 sends the device information structure corresponding to the USB device to be redirected to the cloud desktop, so that the cloud desktop completes the corresponding redirection processing of the USB device to be redirected according to the device information structure. The device information structure sending module 52 sends the device information structure corresponding to the USB device to be redirected to the cloud desktop, so that the desktop creates the USB to be redirected on the cloud desktop according to the device information structure of the USB device to be redirected. The virtual USB device corresponding to the device is installed, and the device driver corresponding to the USB device to be redirected is installed on the cloud desktop to complete the redirection of the USB device to be redirected. After the redirect is completed, the cloud desktop returns the redirect result to the terminal, and communicates with the terminal for data transmission.

The USB device redirection device provided by the embodiment of the present invention determines the USB device to be redirected according to the location information of the USB device selected from the USB device list and the location information corresponding to the physical device object created by the hub; the USB device to be redirected The corresponding device information structure is sent to the cloud desktop, so that the cloud desktop completes the corresponding redirection process of the USB device to be redirected according to the device information structure. That is, the location information corresponding to the device information structure and the location information corresponding to the physical device object created from the USB device list and the location information corresponding to the physical device object created by the hub can be determined to be redirected during the USB device redirection process. The USB device performs a redirection operation on the determined USB device to be redirected. Compared with the prior art, when performing USB device redirection, the terminal needs to locally install the device driver corresponding to each USB device to determine the manner in which the USB device to be redirected is redirected, thereby reducing the storage pressure of the terminal and making The redirection process is simple and improves the user experience.

Obviously, those skilled in the art should understand that the modules or steps of the above embodiments of the present invention can be implemented by a general computing device, which can be concentrated on a single computing device or distributed among multiple computing devices. On the network, optionally, they may be implemented by program code executable by the computing device, such that they may be stored in a computer storage medium (ROM/RAM, disk, optical disk) by a computing device, and at some In some cases, the steps shown or described may be performed in an order different than that herein, or they may be separately fabricated into individual integrated circuit modules, or a plurality of modules or steps may be fabricated into a single integrated circuit module. . Therefore, the invention is not limited to any particular combination of hardware and software.

The above is a detailed description of the embodiments of the present invention in conjunction with the specific embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be made without departing from the spirit and scope of the invention.

Industrial applicability

The technical solutions provided by the embodiments of the present invention can be applied to the field of communications technologies. According to an embodiment of the present invention, a USB device redirection method, apparatus, and computer storage medium determine a USB device to be redirected by using location information of a USB device selected from a USB device list and location information corresponding to a physical device object created by a hub; The device information structure corresponding to the USB device to be redirected is sent to the cloud desktop, so that the cloud desktop completes the corresponding redirection process of the USB device to be redirected according to the device information structure. That is, in the USB device redirection process, the USB device to be redirected can be determined by the location information of the USB device selected from the USB device list and the location information corresponding to the physical device object created by the hub, and the determined to be redirected The USB device performs a redirection operation. Compared with the prior art, when performing USB device redirection, the terminal needs to locally install the device driver corresponding to each USB device to determine the manner in which the USB device to be redirected is redirected, thereby reducing the storage pressure of the terminal and making The redirection process is simple and improves the user experience.

Claims

A USB device redirection method includes:

Determining the USB device to be redirected according to the location information of the USB device selected from the USB device list and the location information corresponding to the physical device object created by the hub;

The device information structure corresponding to the USB device to be redirected is sent to the cloud desktop, and the cloud desktop completes the corresponding redirection process of the USB device to be redirected according to the device information structure.
The USB device redirection method according to claim 1, wherein the determining the USB device to be redirected according to the location information of the USB device selected from the USB device list and the location information corresponding to the physical device object created by the hub comprises:

Obtaining location information of the USB device from a device information structure corresponding to the USB device selected in the USB device list;

Enumerating a hub through a physical bus to obtain location information corresponding to a physical device object created by each hub;

A USB device corresponding to the physical device object that matches the location information with the location information of the USB device selected from the USB device list is used as the USB device to be redirected.
The USB device redirection method according to claim 2, wherein the generating manner of the device information structure comprises:

Obtain hub information by enumerating hubs from the physical bus;

Obtaining USB device information according to the hub information;

Generating a device information structure according to the hub information and the USB device information; the device information structure includes location information of the USB device.
The USB device redirection method according to claim 3, wherein the manner of generating the location information of the USB device in the device information structure comprises:

Determining hub serial number information according to the hub information;

Determining USB device port information according to the USB device information;

Splicing the USB device port information and the hub serial number information to obtain location information of the USB device.
The USB device redirection method according to any one of claims 1 to 4, wherein after determining the USB device to be redirected, the method further includes:

The USB device to be redirected is loaded with a preset unified device driver.
A USB device redirection device includes:

The USB device determining module to be redirected is configured to determine the USB device to be redirected by setting location information of the USB device selected from the USB device list and location information corresponding to the physical device object created by the hub;

The device information structure sending module is configured to send the device information structure corresponding to the USB device to be redirected to the cloud desktop, so that the cloud desktop completes the corresponding redirection of the USB device to be redirected according to the device information structure. deal with.
The USB device redirection device of claim 6, wherein the to-be-redirected USB device determining module is further configured to:

Obtaining location information of the USB device from a device information structure corresponding to the USB device selected in the USB device list;

Enumerating a hub through a physical bus to obtain location information corresponding to a physical device object created by each hub;

A USB device corresponding to the physical device object that matches the location information with the location information of the USB device selected from the USB device list is used as the USB device to be redirected.
The USB device redirection device of claim 7, further comprising a device information structure generation module, wherein the device information structure generation module is configured to:

Obtain hub information by enumerating hubs from the physical bus;

Obtaining USB device information according to the hub information;

Generating a device information structure according to the hub information and the USB device information; the device information structure includes location information of the USB device.
The USB device redirection device of claim 8, wherein the device information structure generation module is further configured to:

Determining hub serial number information according to the hub information;

Determining USB device port information according to the USB device information;

Splicing the USB device port information and the hub serial number information to obtain location information of the USB device.
The USB device redirection device according to any one of claims 6 to 9, further comprising a unified device driver loading module, wherein the unified device driver loading module is configured to:

After determining the USB device to be redirected, the USB device to be redirected is loaded with a preset unified device. drive.
A computer storage medium having stored therein one or more programs executable by a computer, the one or more programs being executed by the computer to cause the computer to perform as in claims 1-5 The USB device redirection method of any of the above.