CN112000374A - USB touch screen replacing method, device, equipment and medium applied to android system - Google Patents
USB touch screen replacing method, device, equipment and medium applied to android system Download PDFInfo
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Abstract
The invention discloses a USB touch screen replacing method, device, equipment and medium applied to an android system. The storage file written with the PID value and the VID value of the USB touch screen is copied into the mobile storage device; inserting the mobile storage device into an android device to be applied; finding a storage file in the android device to be applied according to a preset path; reading the storage file, and analyzing storage file instruction data containing a PID value and a VID value of the USB touch screen according to an inipadser file analysis rule; storing the instruction data of the storage file in a preset IBD storage space; reading the general drive data of the kernel of the android device; comparing generic driver data to storage file instruction data within the IBD storage space; and if so, writing the PID value and the VID value of the USB touch screen into the general drive data. The invention can enable a user to dynamically update new touch screen information in the USB universal drive under the condition of not flashing, so that the newly added USB touch screen can be driven quickly.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a method, a device, equipment and a medium for replacing a USB touch screen applied to an android system.
Background
android products have been widely operated in various fields of various industries, and the technical performance and the like of the android products tend to be stable. In the industrial control field and the commercial display field, the android product configures various usb touch screens to meet the user requirements. The general usb touch screen is drive-free, and the general usb driver in the kernel of the android product can drive the usb touch screen. However, in order to enable the universal usb driver to match the usb touch screen newly added to the android product, PID (product identification code) and VID (vendor ID) of the touch screen need to be added to the driver, so that the driver code must be updated every time the usb touch screen is added to support one usb touch screen, and then the usb touch screen is refreshed after compiling and generating firmware, which is very troublesome in steps, and thus is very unfavorable for quick replacement of clients, and reduces user experience.
Disclosure of Invention
Aiming at the defects, the embodiment of the invention provides a method, a device, equipment and a medium for replacing a USB touch screen applied to an android system, and aims to solve the problems in the prior art.
In a first aspect, an embodiment of the present invention provides a method for replacing a USB touch screen applied to an android system, where the method includes:
copying a storage file written with the PID value and the VID value of the USB touch screen into the mobile storage device;
reading data in the mobile storage device in the android system device to be applied;
finding the storage file in the android system device to be applied according to a preset path;
analyzing storage file instruction data containing the PID value and the VID value of the USB touch screen according to an iniparser file analysis rule;
storing the instruction data of the storage file in a preset IBD storage space;
restarting the android system device, and reading the general drive data of the android system device kernel;
comparing the generic driver data to storage file instruction data within the IBD storage space;
and if the USB touch screen is added, writing the PID value and the VID value of the USB touch screen into the general drive data.
Preferably, the reading data in the mobile storage device in the android system device to be applied further includes:
detecting an access signal of a mobile storage device in the android system device to be applied;
and starting scanning on the mobile storage equipment according to the access signal of the mobile storage equipment.
Preferably, the detecting an access signal of a mobile storage device in the android system device to be applied includes:
detecting whether a mobile storage device is accessed through a netlink communication interface between a network application program and a kernel;
and if so, the netlink communication interface generates a mobile storage device access signal and sends the mobile storage device access signal to the main control board of the android system device.
Preferably, the copying the storage file written with the PID value and VID value of the USB touch screen to the mobile storage device includes:
acquiring a PID value and a VID value of the USB touch screen;
writing the PID value and the VID value of the USB touch screen into USB _ tp.ini files;
and copying the usb _ tp.ini file to a mobile storage device.
Preferably, the writing the PID value and VID value of the USB touch screen into the USB _ tp.ini file includes:
acquiring the number of mobile storage devices accessed to the USB interface;
assigning the PID value to Product _0 in the usb _ tp.ini file;
and assigning the VID value to the vendor _0 in the usb _ tp.ini file.
In a second aspect, an embodiment of the present invention provides a quick replacement apparatus applied to a USB touch screen, where the apparatus includes:
the first reading module is used for reading data in the mobile storage device in the android system device to be applied;
the retrieval module is used for finding the storage file in the android system device to be applied according to a preset path;
the analyzing module is used for analyzing storage file instruction data containing the PID value and the VID value of the USB touch screen according to an inipearser file analyzing rule;
the storage module is used for storing the storage file instruction data in a preset IBD storage space;
the second reading module is used for restarting the android system device and reading the general drive data of the kernel of the android system device;
a comparison module for comparing the general driver data with the instruction data of the storage file in the IBD storage space;
and the writing module is used for writing the PID value and the VID value of the USB touch screen in the general drive data.
In a third aspect, an embodiment of the present invention provides a USB touch screen replacing device applied to an android system, including: at least one processor, at least one memory, and computer program instructions stored in the memory, which when executed by the processor, implement the method of the first aspect of the embodiments described above.
In a fourth aspect, embodiments of the present invention provide a storage medium having stored thereon computer program instructions, which when executed by a processor, implement the method of the first aspect in the above embodiments.
In summary, the USB touch screen replacing method, device, equipment and storage medium applied to the android system provided in the embodiments of the present invention. The storage file written with the PID value and the VID value of the USB touch screen is copied into the mobile storage device; reading data in the mobile storage device in the android system device to be applied; finding the storage file in the android system device to be applied according to a preset path; analyzing storage file instruction data containing the PID value and the VID value of the USB touch screen according to an iniparser file analysis rule; storing the instruction data of the storage file in a preset IBD storage space; restarting the android system device, and reading the general drive data of the android system device kernel; comparing the generic driver data to storage file instruction data within the IBD storage space; and if the USB touch screen is added, writing the PID value and the VID value of the USB touch screen into the general drive data, so that the original general drive in the kernel of the android system device can directly drive the newly added USB touch screen to work without updating a drive code, and then compiling and generating a firmware and refreshing the machine again. The invention can enable a user to dynamically update new touch screen information in the USB universal drive under the condition of not flashing, so that the newly added USB touch screen can be driven quickly, and the product competitiveness is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a USB touch screen replacement method applied to an android system in an embodiment of the present invention.
Fig. 2 is a schematic working principle diagram of a USB touch screen replacement method applied to an android system in an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a quick replacement device applied to a USB touch screen according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a quick-change device applied to a USB touch screen according to an embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Referring to fig. 1 and fig. 2, an embodiment of the present invention provides a method for replacing a USB touch screen applied to an android system, where a PID value and a VID value of the USB touch screen are written in original general drive data in an kernel of an android system device, so as to directly drive a newly added USB touch screen to work without updating a drive code, and then the drive code is compiled to generate a firmware and then the firmware is refreshed. Therefore, the invention can enable the user to dynamically update the new touch screen information in the USB general driver without flashing, so that the newly added USB touch screen can be driven quickly, and the product competitiveness is improved.
The method comprises the following steps:
s1, copying the storage file written with the PID value and the VID value of the USB touch screen into the mobile storage device;
specifically, all USB devices have a Vendor Id (VID) and a product identification number (PID) as specified by the USB specification, and the android system host distinguishes between different USB devices by different VIDs and PIDs. Accordingly, the PID and VID values are not specifically limited herein. In this embodiment, the mobile storage device is a usb disk. In another preferred embodiment, the mobile storage device may also be a mobile hard disk.
Preferably, the copying the storage file written with the PID value and VID value of the USB touch screen to the mobile storage device includes:
acquiring a PID value and a VID value of the USB touch screen;
writing the PID value and the VID value of the USB touch screen into USB _ tp.ini files;
and copying the usb _ tp.ini file to a mobile storage device.
Preferably, in the android system, the. ini file is used to store the selections made by the user and various parameters of the system. The user can change the parameter configuration of the application and the system by modifying the ini file.
S2, reading data in the mobile storage device in the android system device to be applied;
preferably, the reading data in the mobile storage device in the android system device to be applied further includes:
detecting an access signal of a mobile storage device in the android system device to be applied;
and starting scanning on the mobile storage equipment according to the access signal of the mobile storage equipment.
Preferably, the detecting an access signal of a mobile storage device in the android system device to be applied includes:
detecting whether a mobile storage device is accessed through a netlink communication interface between a network application program and a kernel;
and if so, the netlink communication interface generates a mobile storage device access signal and sends the mobile storage device access signal to the main control board of the android system device.
Preferably, in this embodiment, the netlink communication interface is a special inter-process communication (IPC) for enabling a user process to communicate with a kernel process of the android system, and is also the most common interface for a network application to communicate with a kernel.
S3, finding the storage file in the android system device to be applied according to a preset path;
s4, analyzing storage file instruction data containing the PID value and VID value of the USB touch screen according to the inipearser file analysis rule;
s5, storing the instruction data of the storage file in a preset IBD storage space;
preferably, in this embodiment, the android usbtpd system in the android system device detects whether a usb disk is inserted through the netlink communication interface. When the insertion of the USB flash disk is confirmed, the USB flash disk is scanned, usb _ tp.ini files are retrieved, the files are analyzed by using an inipearser tool, and PIDs and VIDs are extracted and stored in an IDB storage space.
S6, restarting the android system device, and reading the general drive data of the android system device kernel;
s7, comparing the general driving data with the instruction data of the storage file in the IBD storage space;
and S8, if the USB touch screen is added, writing the PID value and the VID value of the USB touch screen into the general drive data.
Preferably, in this embodiment, the android system restarts, and the usb tp generic driver in the android system reads data from the IDB storage space, and compares whether a new PID value and VID value are added. If the USB tp general driver in the android system detects that the addition is made, a new PID value and a new VID value are added into the driver to drive a new USB touch screen to work, so that the newly added USB touch screen can be directly driven to work without updating a driving code, and then the USB touch screen is refreshed after compiling and generating a firmware. .
Preferably, the writing the PID value and VID value of the USB touch screen into the USB _ tp.ini file includes:
acquiring the number of mobile storage devices accessed to the USB interface;
assigning the PID value to Product _0 in the usb _ tp.ini file;
and assigning the VID value to the vendor _0 in the usb _ tp.ini file. In this embodiment, the specific code for writing the PID value and VID value of the USB touch screen into the USB _ tp.ini file is as follows:
[usbtp]
num＝1；
vendor_0＝0xdfc；
Product_0＝0x3；
where 0xdfc and 0x3 are hexadecimal numbers, which are the VID value and PID value of the invention, respectively. It is to be understood that the VID values and PID values are not specifically limited herein.
Referring to fig. 3, an embodiment of the invention provides a quick replacement device applied to a USB touch screen, where the device includes:
the first reading module 1 is used for reading data in the mobile storage device in the android system device to be applied;
the retrieval module 2 is used for finding the storage file in the android system device to be applied according to a preset path;
the analysis module 3 is used for analyzing storage file instruction data containing the PID value and the VID value of the USB touch screen according to an inipearser file analysis rule;
the storage module 4 is used for storing the storage file instruction data in a preset IBD storage space;
the second reading module 5 is configured to restart the android system device, and read the general drive data of the kernel of the android system device;
a comparison module 6, configured to compare the generic driver data with the instruction data of the storage file in the IBD storage space;
and the writing module 7 is used for writing the PID value and the VID value of the USB touch screen in the general drive data.
In addition, the USB touch screen replacing method applied to the android system described in the embodiment of the present invention in conjunction with fig. 1 may be implemented by a USB touch screen replacing device applied to the android system. Fig. 4 shows a schematic hardware structure diagram of a USB touch screen replacement device applied to an android system, provided by the embodiment of the present invention.
A quick-change device for application to a USB touch screen may include a processor 401 and a memory 402 storing computer program instructions.
Specifically, the processor 401 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured as one or more Integrated circuits implementing embodiments of the present invention.
The processor 401 reads and executes the computer program instructions stored in the memory 402 to implement any one of the USB touch screen replacing methods applied to the android system in the above embodiments.
In one example, the USB touch screen replacement method applied to the android system device may further include a communication interface 403 and a bus 410. As shown in fig. 4, the processor 401, the memory 402, and the communication interface 403 are connected via a bus 410 to complete communication therebetween.
The communication interface 403 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiments of the present invention.
In addition, in combination with the USB touch screen replacement method applied to the android system in the foregoing embodiment, an embodiment of the present invention may provide a computer-readable storage medium to implement the method. The computer readable storage medium having stored thereon computer program instructions; when executed by a processor, the computer program instructions implement any one of the above-described embodiments of the USB touch screen replacement method applied to the android system.
In summary, the USB touch screen replacing method, device, equipment and medium applied to the android system provided in the embodiments of the present invention. The storage file written with the PID value and the VID value of the USB touch screen is copied into the mobile storage device; reading data in the mobile storage device in the android system device to be applied; finding the storage file in the android system device to be applied according to a preset path; analyzing storage file instruction data containing the PID value and the VID value of the USB touch screen according to an iniparser file analysis rule; storing the instruction data of the storage file in a preset IBD storage space; restarting the android system device, and reading the general drive data of the android system device kernel; comparing the generic driver data to storage file instruction data within the IBD storage space; and if the USB touch screen is added, writing the PID value and the VID value of the USB touch screen into the general drive data, so that the original general drive in the kernel of the android system device can directly drive the newly added USB touch screen to work without updating a drive code, and then compiling and generating a firmware and refreshing the machine again. The invention can enable a user to dynamically update new touch screen information in the USB universal drive under the condition of not flashing, so that the newly added USB touch screen can be driven quickly, and the product competitiveness is improved.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
As described above, only the specific embodiments of the present invention are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (8)
1. A USB touch screen replacing method applied to an android system is characterized by comprising the following steps:
copying a storage file written with the PID value and the VID value of the USB touch screen into the mobile storage device;
reading data in the mobile storage device in the android system device to be applied;
finding the storage file in the android system device to be applied according to a preset path;
analyzing storage file instruction data containing the PID value and the VID value of the USB touch screen according to an iniparser file analysis rule;
storing the instruction data of the storage file in a preset IBD storage space;
restarting the android system device, and reading the general drive data of the android system device kernel;
comparing the generic driver data to storage file instruction data within the IBD storage space;
and if the USB touch screen is added, writing the PID value and the VID value of the USB touch screen into the general drive data.
2. The method for replacing the USB touch screen applied to the android system according to claim 1, wherein the reading data in the mobile storage device in the android system device to be applied further includes:
detecting an access signal of a mobile storage device in the android system device to be applied;
and starting scanning on the mobile storage equipment according to the access signal of the mobile storage equipment.
3. The method for replacing the USB touch screen applied to the android system according to claim 2, wherein the detecting the access signal of the mobile storage device in the android system device to be applied includes:
detecting whether a mobile storage device is accessed through a netlink communication interface between a network application program and a kernel;
and if so, the netlink communication interface generates a mobile storage device access signal and sends the mobile storage device access signal to the main control board of the android system device.
4. The USB touch screen replacing method applied to the android system, according to claim 1, wherein the copying the storage file written with the PID value and the VID value of the USB touch screen to the mobile storage device comprises:
acquiring a PID value and a VID value of the USB touch screen;
writing the PID value and the VID value of the USB touch screen into USB _ tp.ini files;
and copying the usb _ tp.ini file to a mobile storage device.
5. The USB touch screen replacing method applied to the android system, according to claim 4, wherein writing the PID value and the VID value of the USB touch screen into a USB _ tp.ini file comprises:
acquiring the number of mobile storage devices accessed to the USB interface;
assigning the PID value to Product _0 in the usb _ tp.ini file;
and assigning the VID value to the vendor _0 in the usb _ tp.ini file.
6. A quick replacement device for a USB touch screen, the device comprising:
the first reading module is used for reading data in mobile storage equipment in android system equipment to be applied;
the retrieval module is used for finding the storage file in the android system device to be applied according to a preset path;
the analyzing module is used for analyzing storage file instruction data containing the PID value and the VID value of the USB touch screen according to an inipearser file analyzing rule;
the storage module is used for storing the storage file instruction data in a preset IBD storage space;
the second reading module is used for restarting the android system device and reading the general drive data of the kernel of the android system device;
a comparison module for comparing the general driver data with the instruction data of the storage file in the IBD storage space;
and the writing module is used for writing the PID value and the VID value of the USB touch screen in the general drive data.
7. A quick replacement device for a USB touch screen, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory that, when executed by the processor, implement the method of any of claims 1-5.
8. A storage medium having computer program instructions stored thereon, which when executed by a processor implement the method of any one of claims 1-5.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114610399A (en) * | 2022-01-26 | 2022-06-10 | 厦门厦华科技有限公司 | Method for conveniently replacing touch frame of electronic whiteboard |
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