diff options
| -rw-r--r-- | include/asm-generic/gpio.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index bc0c14da7162..fb1ecf8baa90 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -60,7 +60,9 @@ struct module; * @names: if set, must be an array of strings to use as alternative * names for the GPIOs in this chip. Any entry in the array * may be NULL if there is no alias for the GPIO, however the - * array must be @ngpio entries long. + * array must be @ngpio entries long. A name can include a single printk + * format specifier for an unsigned int. It is substituted by the actual + * number of the gpio. * * A gpio_chip can help platforms abstract various sources of GPIOs so * they can all be accessed through a common programing interface. |