diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/gpio.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index 7104454..693bb56 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -96,6 +96,24 @@ enum gpio_func_t { struct udevice; /** + * gpio_get_status() - get the current GPIO status as a string + * + * Obtain the current GPIO status as a string which can be presented to the + * user. A typical string is: + * + * "b4: in: 1 [x] sdmmc_cd" + * + * which means this is GPIO bank b, offset 4, currently set to input, current + * value 1, [x] means that it is requested and the owner is 'sdmmc_cd' + * + * @dev: Device to check + * @offset: Offset of device GPIO to check + * @buf: Place to put string + * @buffsize: Size of string including \0 + */ +int gpio_get_status(struct udevice *dev, int offset, char *buf, int buffsize); + +/** * gpio_get_function() - get the current function for a GPIO pin * * Note this returns GPIOF_UNUSED if the GPIO is not requested. |