https://github.com/uk0/rk3588_hid_usb_mouse_kernel
通过 Linux gadget 将某个usb host 模拟成 hid设备 提供给pc设备
https://github.com/uk0/rk3588_hid_usb_mouse_kernel
Last synced: 3 months ago
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通过 Linux gadget 将某个usb host 模拟成 hid设备 提供给pc设备
- Host: GitHub
- URL: https://github.com/uk0/rk3588_hid_usb_mouse_kernel
- Owner: uk0
- License: mit
- Created: 2022-11-08T09:16:37.000Z (over 2 years ago)
- Default Branch: main
- Last Pushed: 2022-11-08T12:39:05.000Z (over 2 years ago)
- Last Synced: 2025-02-24T16:14:32.433Z (3 months ago)
- Language: C
- Size: 7.81 KB
- Stars: 4
- Watchers: 1
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
#### rk3588_hid_usb_mouse_kernel
#### 资料
* rk3588 详细信息 `https://www.cnx-software.com/2021/12/16/rockchip-rk3588-datasheet-sbc-coming-soon/`
* hid 资料 `https://winddoing.github.io/post/5098.html`
* hid `https://zhuanlan.zhihu.com/p/387793592`
* hid `https://forums.raspberrypi.com/viewtopic.php?t=234495`
#### 实现方式
* 使用Linux gadget 驱动框架，在应用层使用脚本方式实现。
* make ARCH=arm64 menuconfig `修改内核编译好了从新烧到板子内` 查看是否包含`libcomposite.ko`
#### quick
* Install the necessary packages
```bash
sudo apt-get update
sudo apt-get install build-essential python-dev python-pip git
sudo apt-get install vim ctags screen build-essential
```
* 创建HID配置信息
```bash
#in mod.sh
# left meta right x y 5 buttons
#!/bin/bash
# 添加mod
CONFIGFS_HOME=/sys/kernel/config
insmod libcomposite.ko
insmod usb_f_fs.ko
insmod usb_f_hid.ko
modprobe libcomposite # 加入驱动
mkdir -p $CONFIGFS_HOME/usb_gadget/m1 # 在usb_gadget 中创建我们设备的文件夹
# 当我们创建完这个文件夹之后，系统自动的在这个文件夹中创建usb相关的内容 ，这些内容需要由创建者自己填写。
cd $CONFIGFS_HOME/usb_gadget/m1
echo "0x0104" > idVendor # 写入我们自定义的usb vid
echo "0x1d6b" > idProduct# 写入我们自定义的usb pid
mkdir strings/0x409 # 创建字符串文件夹
echo "831409-0000" > strings/0x409/serialnumber
echo "Logitech，Inc" > strings/0x409/manufacturer
echo "Logitech G Pro Wireless" > strings/0x409/product
# 创换配置功能
#$mkdir configs/.
mkdir -p configs/c.1/strings/0x409
echo 0x80 > configs/c.1/bmAttributes # usb 硬件参数
echo 100 > configs/c.1/MaxPower # usb 硬件参数 最大电流100 mA
echo "Configuration" > configs/c.1/strings/0x409/configuration
#定义hid 设备
mkdir -p functions/hid.usb0
mkdir -p functions/hid.usb0
echo 1 > functions/hid.usb0/protocol
echo 1 > functions/hid.usb0/subclass
echo 3 > functions/hid.usb0/report_length
echo -ne \\x05\\x01\\x09\\x02\\xa1\\x01\\x09\\x01\\xa1\\x00\\x05\\x09\\x19\\x01\\x29\\x03\\x15\\x00\\x25\\x01\\x95\\x03\\x75\\x01\\x81\\x02\\x95\\x01\\x75\\x05\\x81\\x03\\x05\\x01\\x09\\x30\\x09\\x31\\x15\\x81\\x25\\x7f\\x75\\x08\\x95\\x02\\x81\\x06\\xc0\\xc0 > functions/hid.usb0/report_desc
# Write report descriptor hex值
# Link the configuration file
ln -s functions/hid.usb0 configs/c.1
# Activate device
ls /sys/class/udc > UDC #当我们执行完这条命令后，系统就自动的帮我们创建了ubs hid 设备，
```
#### 参考引用
* https://github.com/milador/RaspberryPi-Joystick
* https://www.youtube.com/watch?v=ufzLQ4PSwW4