CN116684281A - Network card enumeration method and related device - Google Patents

Network card enumeration method and related device Download PDF

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Publication number
CN116684281A
CN116684281A CN202310645668.0A CN202310645668A CN116684281A CN 116684281 A CN116684281 A CN 116684281A CN 202310645668 A CN202310645668 A CN 202310645668A CN 116684281 A CN116684281 A CN 116684281A
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CN
China
Prior art keywords
usb
network card
type
operating system
usb host
Prior art date
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Pending
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CN202310645668.0A
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Chinese (zh)
Inventor
李顺福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Guanghetong Wireless Communication Software Co ltd
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Shenzhen Guanghetong Wireless Communication Software Co ltd
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Application filed by Shenzhen Guanghetong Wireless Communication Software Co ltd filed Critical Shenzhen Guanghetong Wireless Communication Software Co ltd
Priority to CN202310645668.0A priority Critical patent/CN116684281A/en
Publication of CN116684281A publication Critical patent/CN116684281A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0806—Configuration setting for initial configuration or provisioning, e.g. plug-and-play
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

The application discloses a network card enumeration method and a related device. The method comprises the following steps: the USB equipment determines the type of the operating system of the universal serial bus USB host according to the length of the request equipment descriptor; the USB equipment configures the network card type of the USB equipment according to the type of an operating system of the USB host; the USB device enumerates the network card of the USB device as the configured network card type. The method can improve the efficiency of the USB device enumeration network card.

Description

Network card enumeration method and related device
Technical Field
The present application relates to the field of computer technologies, and in particular, to a network card enumeration method and a related device.
Background
One of the main functions of the module universal serial bus (universal serial bus, USB) port is to enumerate the network card, e.g. enumerate remote network driver interface specifications (remote network driver interface specification, RNDIS), ethernet control model (ethernet networking control model, ECM) for use by the host.
Currently, in the process of enumerating network cards, it is required to manually enumerate different network cards for the USB host according to the operating system of the USB host, such as windows operating system, linux operating system, etc., by using an at+gtusbmode command to switch the USB device.
However, this enumeration approach is inefficient. Therefore, how to improve the efficiency of the USB device enumeration network card becomes a problem to be solved.
Disclosure of Invention
The embodiment of the application provides a network card enumeration method and a related device, which can improve the efficiency of USB equipment enumeration network cards.
In a first aspect, an embodiment of the present application provides a network card mode switching method, where the method includes:
the USB equipment determines the type of the operating system of the universal serial bus USB host according to the length of the request equipment descriptor;
the USB equipment configures the network card type of the USB equipment according to the type of the operating system of the USB host;
the USB device enumerates the network card of the USB device as the network card type.
Therefore, in the embodiment of the application, the USB device can automatically identify the operating system type of the USB host according to the length of the request device descriptor, so that the USB device can enumerate into the network card device suitable for the USB operating system type according to the operating system type of the USB host, and the efficiency of the USB device for enumerating the network card can be improved.
In an alternative embodiment, the USB device configures a network card type of the USB device according to an operating system type of the USB host, including:
the USB equipment informs an application program of the type of an operating system of the USB host through the kernel;
the USB equipment configures the network card type of the USB equipment according to the type of the operating system of the USB host through the application program.
In this embodiment, after the application program configures the network card type of the USB device, the USB device may be forced to enumerate the network card type matching the operating system type of the USB host, thereby facilitating normal operation of the USB host.
In an alternative embodiment, the method further comprises:
the USB device receives a request device descriptor from the USB host.
In this embodiment, the USB device may receive the request device descriptor from the USB host, so that, based on the length of the received request device descriptor, the operating system type of the USB host is automatically identified, and further, the efficiency of the USB device enumeration network card may be improved.
In an alternative embodiment, the method further comprises:
the USB device initiates an enumeration function of the USB device.
In this embodiment, by starting the enumeration function of the USB device, the USB device may enumerate the network card type that matches the operating system type of the USB host, thereby facilitating normal operation of the USB host.
In a second aspect, an embodiment of the present application provides a network card enumeration device, where the device includes:
a determining unit, configured to determine an operating system of the USB host according to a length of the request device descriptor;
the configuration unit is used for configuring the network card type of the USB equipment according to the operating system of the USB host;
and the processing unit is used for enumerating the network card of the USB equipment into the network card type.
The optional implementation manner and the beneficial effects of the network card enumeration device can be seen from the description of the network card enumeration method provided in the foregoing first aspect, and the description is omitted herein.
In a third aspect, an embodiment of the present application provides a network card enumeration module, where the network card enumeration module includes a processor, a communication interface, and a memory, where the processor, the communication interface, and the memory are connected to each other, where the memory stores executable program codes, and the processor is configured to invoke the executable program codes to execute a network card enumeration method as designed in the first aspect.
In a fourth aspect, an embodiment of the present application provides an apparatus, including: the system comprises a memory and a processor, wherein the memory stores a computer program which realizes the network card enumeration method designed in the first aspect when being executed by the processor.
In a fifth aspect, an embodiment of the present application provides a computer readable storage medium, where a computer program is stored, where the computer program when executed by a processor implements a network card enumeration method as designed in the first aspect above.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic flow chart of a network card enumeration method according to an embodiment of the present application;
fig. 2 is a flowchart of another network card enumeration method according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a network card enumeration device according to an embodiment of the present application;
fig. 4 is a schematic diagram of an apparatus according to an embodiment of the present application.
Detailed Description
For the purpose of facilitating an understanding of the embodiments of the present application, exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of modules and methods consistent with aspects of the application as detailed in the accompanying claims.
It should be understood that, although the steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily occurring in sequence, but may be performed alternately or alternately with other steps or at least a portion of the other steps or stages.
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
In the following description, suffixes such as "module", "part" or "unit" for representing elements are used only for facilitating the description of the present application, and have no specific meaning per se. Thus, "module," "component," or "unit" may be used in combination.
First, related concepts mentioned in the embodiments of the present application will be explained.
1. A USB host.
The USB host consists of client software, USB system software and USB bus interface.
Wherein the client software is responsible for communicating with the functional units of the USB device to implement a specific function. The client software cannot directly connect with the USB device, and the connection must be achieved through the USB system software and the USB bus interface. The client software comprises a USB device driver and an interface application program.
The USB system software is responsible for carrying out configuration communication with the USB logic device and managing data started by the client software. The USB system software generally comprises three parts, namely a USB bus driver, a USB main control driver and non-USB host software.
The USB bus interface comprises a main controller and a root hub. The main controller is responsible for completing data transmission between the USB host and the USB device; the root hub is the starting point for the USB system connection.
2. A USB device.
The USB equipment consists of three functional modules, namely a USB bus interface, USB logic equipment and a functional unit.
Wherein the USB bus interface is a serial interface engine in the USB device; the USB logic device is treated by USB system software as a collection of endpoints; a functional unit is considered to be a collection of interfaces.
The network card enumeration method provided by the embodiment of the application is described in detail below.
Referring to fig. 1, fig. 1 is a flowchart of a network card enumeration method according to an embodiment of the present application. As shown in fig. 1, the network card enumeration method may include, but is not limited to, the following steps:
s101, the USB equipment determines the type of the operating system of the universal serial bus USB host according to the length of the descriptor of the request equipment.
In an alternative embodiment, the USB device also receives a requesting device descriptor from the USB host. The request device descriptor is used for the USB host to acquire the device descriptor of the USB device.
The device descriptor is used for describing general information of the USB device, and contains information applied to all devices and all device configurations. The USB device has a device descriptor that is the first descriptor that the USB host obtains when the USB device and the USB host are connected. The information contained in the device descriptor is used by the USB host to obtain additional content for the USB device.
Alternatively, the length of the requesting device descriptor may be represented by a "wLength" parameter. Alternatively, the value of wLength may be 0×08, 0×12, or the like, and is not limited herein.
For example, if the value of wLength is 0×08 (wlength=0×08), the USB device may determine that the operating system type of the USB host is Linux system; if the value of wLength is 0×12 (wlength=0×12), the USB device may determine that the operating system type of the USB host is a Windows system.
S102, the USB equipment configures the network card type of the USB equipment according to the type of the operating system of the USB host.
For example, if the operating system type of the USB host is Linux, the USB device may configure a network card type ECM network card of the USB device. For another example, if the operating system type of the USB host is a Windows system, the network card type of the USB device configured by the USB device is an RNDIS network card.
S103, the USB device enumerates the network card of the USB device as the configured network card type.
That is, after configuring the network card type of the USB device, the USB device may enumerate the network card type that matches the operating system type of the USB host.
For example, if the network card type of the USB device configured by the application program is an ECM network card, the USB device may enumerate the ECM network card. For another example, if the network card type of the USB device configured by the application program is an RNDIS network card, the USB device may enumerate the RNDIS network card.
Therefore, in the embodiment of the application, the USB device can automatically identify the operating system type of the USB host according to the length of the request device descriptor, so that the USB device enumerates network card devices suitable for the operating system type of the USB host according to the operating system type of the USB host, and the efficiency of the USB device enumerating the network card can be improved.
Referring to fig. 2, fig. 2 is a flowchart of another network card enumeration method according to an embodiment of the application. Compared with the network card enumeration method shown in fig. 1, the network card enumeration method shown in fig. 2 also specifically illustrates how the USB device configures the network card type of the USB device according to the operating system type of the USB host. As shown in fig. 2, the network card enumeration method may include, but is not limited to, the following steps:
s201, the USB device starts an application monitoring program.
The application monitoring program is used for controlling the application program to configure the network card type of the USB equipment according to the type of the operating system of the USB host.
S202, the USB device starts an enumeration function of the USB device.
Alternatively, after the enumeration function of the USB device is started, the USB device may perform steps S203 to S207 described below.
S203, the USB device receives the request device descriptor from the USB host.
The request device descriptor is used for the USB host to acquire the device descriptor of the USB device.
S204, the USB equipment determines the type of the operating system of the USB host according to the length of the descriptor of the request equipment.
In an alternative embodiment, the description of step S204 may be referred to the description of step S101, and will not be repeated here.
S205, the USB device informs the application program of the type of the operating system of the USB host through the kernel.
In an alternative embodiment, the USB device informs the application of the operating system type of the USB host through the kernel, and may include: the application program is informed of the operating system type of the USB host through the Netlink event.
Among them, netlink is a special socket, which is unique to Linux systems. Since the transmitted message is temporarily stored in the socket receiving buffer and is not immediately processed by the receiver, netlink is an asynchronous communication mechanism.
S206, the USB equipment configures the network card type of the USB equipment according to the type of the operating system of the USB host through the application program.
In an alternative embodiment, the configuration of the network card type of the USB device by the application program according to the operating system type of the USB host may include: the network card type of the USB device is configured as a network card type matched with the operating system type of the USB host through the application program.
For example, assuming that the operating system type of the USB host is a Linux system, the USB device may configure, by an application, the network card type of the USB device to be a network card type matching the Linux system, such as an ECM network card. For another example, assuming that the operating system type of the USB host is a Windows system, the USB device may configure, by using an application program, a network card type of the USB device to be a network card type that matches the Windows system, such as an RNDIS network card.
S207, the USB device enumerates the network card of the USB device as the configured network card type.
In an alternative embodiment, the description of step S207 may be referred to the description of step S103, and will not be repeated here.
Therefore, in the embodiment of the application, the USB device can dynamically identify the operating system type of the USB host according to the difference (namely the length of the request device descriptor) in the USB enumeration information, so that the network card device suitable for the operating system type of the USB host is enumerated according to the operating system type of the USB host, and the efficiency of the USB device for enumerating the network card can be improved.
In addition, compared with a method for manually switching USB equipment to enumerate different network cards by using AT+GTUSBMODE commands according to an operating system of a USB host, the network card enumeration method provided by the embodiment of the application can realize drive-free operation without additionally installing a driver for identifying an AT port on the USB host.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a network card enumeration device according to an embodiment of the present application.
As shown in fig. 3, the network card enumeration device may include, but is not limited to, the following units:
a determining unit 301, configured to determine an operating system type of the USB host according to a length of the request device descriptor;
a configuration unit 302, configured to configure a network card type of the USB device according to an operating system type of the USB host;
the processing unit 303 is configured to enumerate a network card of the USB device as a network card type.
In an alternative embodiment, the configuration unit 302 is specifically configured to, when configured to configure the network card type of the USB device according to the operating system type of the USB host: notifying an application program of the type of the operating system of the USB host through the kernel; and configuring the network card type of the USB equipment according to the type of the operating system of the USB host through the application program.
In an alternative implementation, the network card enumeration device further includes a communication unit 304.
In an alternative embodiment, the communication unit 304 is configured to receive a request device descriptor from a USB host.
In an alternative embodiment, the processing unit 303 is further configured to: and starting an enumeration function of the USB device.
It may be appreciated that the specific implementation and the beneficial effects that can be achieved of each unit in the network card enumeration device provided by the embodiment of the present application may refer to the description of the foregoing network card enumeration method embodiment, which is not repeated herein.
Based on the description of the method embodiment and the device embodiment, the embodiment of the application also provides equipment. Referring to fig. 4, fig. 4 is a schematic diagram of an apparatus according to an embodiment of the present application. As shown in fig. 4, the device comprises at least a processor 401, a memory 402, a communication interface 403. The processor 401, the memory 402, and the communication interface 403 may be connected by a bus 404 or otherwise, and the embodiment of the present application is exemplified by connection via the bus 404.
Among them, the processor 401 (or CPU (Central Processing Unit, central processing unit)) is a computing core and a control core of the device, which can parse various instructions within the device and process various data of the device, for example: the CPU can be used for analyzing a switching-on and switching-off instruction sent by a user to the equipment and controlling the equipment to perform switching-on and switching-off operation; and the following steps: the CPU may transmit various types of interaction data between the internal structures of the device, and so on. The communication interface 403 may optionally include a standard wired interface, a wireless interface (e.g., wi-Fi, mobile communication interface, etc.), controlled by the processor 401, for transceiving data. Memory 402 (Memory) is a Memory device in the device for storing computer programs and data. It will be appreciated that the memory 402 herein may include both built-in memory of the device and extended memory supported by the device. Memory 402 provides storage space that stores the operating system of the device, which may include, but is not limited to: windows system, linux system, android system, iOS system, etc., the application is not limited in this regard. In an alternative implementation, the processor 401 of the embodiment of the present application may execute the following operations by running a computer program stored in the memory 402, for example:
determining the type of an operating system of the Universal Serial Bus (USB) host according to the length of the request equipment descriptor;
configuring the network card type of the USB equipment according to the type of the operating system of the USB host;
enumerating the network card of the USB device as a network card type.
In an alternative embodiment, the processor 401, when executing the network card type configuring the USB device according to the operating system type of the USB host, specifically performs: notifying an application program of the type of the operating system of the USB host through the kernel; and configuring the network card type of the USB equipment according to the type of the operating system of the USB host through the application program.
In an alternative embodiment, processor 401 further performs: a request message is received from a USB host, the request message for requesting a device descriptor.
In an alternative embodiment, processor 401 further performs: and starting an enumeration function of the USB device.
In a specific implementation, the processor 401, the memory 402, and the communication interface 403 described in the embodiments of the present application may execute the implementation manner of the USB device described in the network card enumeration method provided in the embodiments of the present application, or may execute the implementation manner described in the network card enumeration device provided in the embodiments of the present application, which is not described herein again.
The embodiment of the application also provides a network card enumeration module, which comprises a processor, a communication interface and a memory, wherein the processor, the communication interface and the memory are connected with each other, the memory stores executable program codes, and the processor is used for calling the executable program codes to execute the network card enumeration method designed in the first aspect.
The embodiment of the application also provides a computer readable storage medium, wherein a computer program is stored in the computer readable storage medium, and when the computer program runs on equipment, the computer program causes the equipment to execute the network card enumeration method of any possible implementation manner.
In the embodiment of the computer readable storage medium provided by the application, all technical features of each embodiment of the network card enumeration method are included, and the expansion and explanation contents of the description are basically the same as those of each embodiment of the method, and are not repeated here.
Embodiments of the present application also provide a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the device reads the computer instructions from the computer readable storage medium and executes the computer instructions to cause the device to perform the network card enumeration method of any one of the possible implementations described above.
The embodiment of the application also provides a chip, which comprises a memory and a processor, wherein the memory is used for storing a computer program, and the processor is used for calling and running the computer program from the memory, so that the device provided with the chip executes the method in the various possible implementation manners.
The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.
The units in the device of the embodiment of the application can be combined, divided and deleted according to actual needs.
In the present application, the same or similar term concept, technical solution and/or application scenario description will be generally described in detail only when first appearing and then repeatedly appearing, and for brevity, the description will not be repeated generally, and in understanding the present application technical solution and the like, reference may be made to the previous related detailed description thereof for the same or similar term concept, technical solution and/or application scenario description and the like which are not described in detail later.
In the present application, the descriptions of the embodiments are emphasized, and the details or descriptions of the other embodiments may be referred to.
The technical features of the technical scheme of the application can be arbitrarily combined, and all possible combinations of the technical features in the above embodiment are not described for the sake of brevity, however, as long as there is no contradiction between the combinations of the technical features, the application shall be considered as the scope of the description of the application.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as above, comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, a controlled terminal, or a network device, etc.) to perform the method of each embodiment of the present application.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line), or wireless (e.g., infrared, wireless, microwave, etc.). Computer readable storage media can be any available media that can be accessed by a computer or data storage devices, such as servers, data centers, etc., that contain an integration of one or more available media. Usable media may be magnetic media (e.g., floppy disks, storage disks, magnetic tape), optical media (e.g., DVD), or semiconductor media (e.g., solid State Disk (SSD)), among others.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the application, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (8)

1. A method for enumerating network cards, the method comprising:
determining the type of an operating system of the Universal Serial Bus (USB) host according to the length of the request equipment descriptor;
configuring the network card type of the USB equipment according to the type of the operating system of the USB host;
enumerating the network card of the USB device as the network card type.
2. The method of claim 1, wherein configuring the network card type of the USB device according to the operating system type of the USB host comprises:
notifying an application program of the operating system type of the USB host through the kernel;
and configuring the network card type of the USB equipment according to the operating system type of the USB host through the application program.
3. The method according to claim 1 or 2, characterized in that the method further comprises:
a requesting device descriptor is received from a USB host.
4. The method according to claim 1 or 2, characterized in that the method further comprises:
and starting an enumeration function of the USB equipment.
5. A network card enumeration device, the device comprising:
a determining unit, configured to determine an operating system of the USB host according to a length of the request device descriptor;
the configuration unit is used for configuring the network card type of the USB equipment according to the operating system of the USB host;
and the processing unit is used for enumerating the network card of the USB equipment into the network card type.
6. A network card enumeration module, characterized in that the network card enumeration module comprises a processor, a communication interface and a memory, the processor, the communication interface and the memory being connected to each other, wherein the memory stores executable program code, the processor being adapted to invoke the executable program code to perform the method according to any of claims 1-4.
7. An apparatus, the apparatus comprising: a memory and a processor, wherein the memory has stored thereon a computer program which, when executed by the processor, implements the method of any of claims 1 to 4.
8. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program comprising program instructions which, when executed by a processor, cause the processor to perform the method of any of claims 1 to 4.
CN202310645668.0A 2023-06-01 2023-06-01 Network card enumeration method and related device Pending CN116684281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310645668.0A CN116684281A (en) 2023-06-01 2023-06-01 Network card enumeration method and related device

Publications (1)

Publication Number Publication Date
CN116684281A true CN116684281A (en) 2023-09-01

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