使用LInux内核自带的gpio-keys通用驱动，然后在mach-nux970.c中添加了按键平台设备并注册，其中部分代码：
- static struct gpio_keys_button nuc970_buttons[] = {
- {
- .gpio = NUC970_PF11, /* K1 */
- .code = KEY_A,
- .desc = "Button 1",
- .active_low = 1,
- },
- {
- .gpio = NUC970_PF12, /* K2 */
- .code = KEY_B,
- .desc = "Button 2",
- .active_low = 1, //按键按下时低电平
- },
- {
- .gpio = NUC970_PF13, /* K3 */
- .code = KEY_C,
- .desc = "Button 3",
- .active_low = 1,
- },
- {
- .gpio = NUC970_PF14, /* K4 */
- .code = KEY_D, //供应用程序识别的代码
- .desc = "Power",
- .active_low = 1,
- }
gpio-keys gpio-keys: Failed to request GPIO 171, error -517
请问是不是gpio编号错误？
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