[PATCH/RFC,v12,03/19] Documentation: leds: Add description of LED Flash class extension
Commit Message
The documentation being added contains overall description of the
LED Flash Class and the related sysfs attributes.
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Bryan Wu <cooloney@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
---
Documentation/leds/leds-class-flash.txt | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
create mode 100644 Documentation/leds/leds-class-flash.txt
Comments
On Wed, Mar 4, 2015 at 8:14 AM, Jacek Anaszewski
<j.anaszewski@samsung.com> wrote:
> The documentation being added contains overall description of the
> LED Flash Class and the related sysfs attributes.
>
Thanks, merged!
-Bryan
> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
> Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
> Cc: Bryan Wu <cooloney@gmail.com>
> Cc: Richard Purdie <rpurdie@rpsys.net>
> ---
> Documentation/leds/leds-class-flash.txt | 22 ++++++++++++++++++++++
> 1 file changed, 22 insertions(+)
> create mode 100644 Documentation/leds/leds-class-flash.txt
>
> diff --git a/Documentation/leds/leds-class-flash.txt b/Documentation/leds/leds-class-flash.txt
> new file mode 100644
> index 0000000..19bb673
> --- /dev/null
> +++ b/Documentation/leds/leds-class-flash.txt
> @@ -0,0 +1,22 @@
> +
> +Flash LED handling under Linux
> +==============================
> +
> +Some LED devices provide two modes - torch and flash. In the LED subsystem
> +those modes are supported by LED class (see Documentation/leds/leds-class.txt)
> +and LED Flash class respectively. The torch mode related features are enabled
> +by default and the flash ones only if a driver declares it by setting
> +LED_DEV_CAP_FLASH flag.
> +
> +In order to enable the support for flash LEDs CONFIG_LEDS_CLASS_FLASH symbol
> +must be defined in the kernel config. A LED Flash class driver must be
> +registered in the LED subsystem with led_classdev_flash_register function.
> +
> +Following sysfs attributes are exposed for controlling flash LED devices:
> +(see Documentation/ABI/testing/sysfs-class-led-flash)
> + - flash_brightness
> + - max_flash_brightness
> + - flash_timeout
> + - max_flash_timeout
> + - flash_strobe
> + - flash_fault
> --
> 1.7.9.5
>
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
new file mode 100644
@@ -0,0 +1,22 @@
+
+Flash LED handling under Linux
+==============================
+
+Some LED devices provide two modes - torch and flash. In the LED subsystem
+those modes are supported by LED class (see Documentation/leds/leds-class.txt)
+and LED Flash class respectively. The torch mode related features are enabled
+by default and the flash ones only if a driver declares it by setting
+LED_DEV_CAP_FLASH flag.
+
+In order to enable the support for flash LEDs CONFIG_LEDS_CLASS_FLASH symbol
+must be defined in the kernel config. A LED Flash class driver must be
+registered in the LED subsystem with led_classdev_flash_register function.
+
+Following sysfs attributes are exposed for controlling flash LED devices:
+(see Documentation/ABI/testing/sysfs-class-led-flash)
+ - flash_brightness
+ - max_flash_brightness
+ - flash_timeout
+ - max_flash_timeout
+ - flash_strobe
+ - flash_fault