目录
- 130|rk3568_r:/dev/input #
- PS C:\Users\fujy> adb shell
- rk3568_r:/ $ getevent
- add device 1: /dev/input/event2
- name: "jadard-touchscreen"
- add device 2: /dev/input/event0
- name: "fdd70030.pwm"
- add device 3: /dev/input/event3
- name: "adc-keys"
- add device 4: /dev/input/event1
- name: "rk805 pwrkey"
-
设备树添加事件和驱动
| 相对路径 | kernel/arch/arm64/boot/dts/rockchip/ido-evb3568-v2b.dtsi |
- gpio_key:gpio-key {
- compatible = "gpio-keys";
- input-name = "gpio-keys";//compatible = "rockchip,key";
- status = "okay";
-
- menu-key {
- label = "menu";
- linux,code = <KEY_MENU>;
- linux,input-type = <1>;//input类型 <EV_KEY>按键 即1
- gpios = <&gpio4 RK_PB3 GPIO_ACTIVE_HIGH>;
- gpio-key,wakeup;//唤起系统
- debounce-interval = <15>;//gpio按键的去抖动时间
- };
- //省略其他按键的参数，格式一致具体内容不同
- }
设备树添加事件驱动后，adb shell 中getevent增加了一个gpio-key 事件
- rk3568_r:/ $ getevent
- add device 1: /dev/input/event2
- name: "jadard-touchscreen"
- add device 2: /dev/input/event0
- name: "fdd70030.pwm"
- add device 3: /dev/input/event4
- name: "gpio-key"
- add device 4: /dev/input/event3
- name: "adc-keys"
- add device 5: /dev/input/event1
- name: "rk805 pwrkey"
- 130|rk3568_r:/ $ cat /proc/bus/input/devices
- I: Bus=0019 Vendor=524b Product=0006 Version=0100
- N: Name="fdd70030.pwm"
- P: Phys=gpio-keys/remotectl
- S: Sysfs=/devices/platform/fdd70030.pwm/input/input0
- U: Uniq=
- H: Handlers=event0 dmcfreq cpufreq
- B: PROP=0
- B: EV=3
- B: KEY=70010 a0004000040000 0 126010002000000 780000040008800 1eb7c000000000 2010000010004ffc
-
- I: Bus=0019 Vendor=0000 Product=0000 Version=0000
- N: Name="rk805 pwrkey"
- P: Phys=rk805_pwrkey/input0
- S: Sysfs=/devices/platform/fdd40000.i2c/i2c-0/0-0020/rk805-pwrkey/input/input1
- U: Uniq=
- H: Handlers=event1 dmcfreq cpufreq
- B: PROP=0
- B: EV=3
- B: KEY=10000000000000 0
-
- I: Bus=0000 Vendor=0000 Product=0000 Version=0000
- N: Name="jadard-touchscreen"
- P: Phys=
- S: Sysfs=/devices/virtual/input/input2
- U: Uniq=
- H: Handlers=event2 dmcfreq cpufreq
- B: PROP=2
- B: EV=b
- B: KEY=10 0 0 0 400 0 0 0 0 0
- B: ABS=665800000000000
-
- I: Bus=0019 Vendor=0001 Product=0001 Version=0100
- N: Name="adc-keys"
- P: Phys=adc-keys/input0
- S: Sysfs=/devices/platform/adc-keys/input/input3
- U: Uniq=
- H: Handlers=event3 dmcfreq cpufreq
- B: PROP=0
- B: EV=3
- B: KEY=40000000 c004000000000 0
-
- I: Bus=0019 Vendor=0001 Product=0001 Version=0100
- N: Name="gpio-key"
- P: Phys=gpio-keys/input0
- S: Sysfs=/devices/platform/gpio-key/input/input4
- U: Uniq=
- H: Handlers=event4 dmcfreq cpufreq
- B: PROP=0
- B: EV=3
- B: KEY=40000800 c000000000000 0