Hi Richard,
Thanks for the set.
On Fri, Mar 14, 2025 at 09:49:55AM +0100, Richard Leitner wrote:
> Add a control V4L2_CID_FLASH_DURATION to set the duration of a
> flash/strobe pulse. This is different to the V4L2_CID_FLASH_TIMEOUT
> control, as the timeout defines a limit after which the flash is
> "forcefully" turned off again.
>
> On the other hand the new V4L2_CID_FLASH_DURATION is the desired length
> of the flash/strobe pulse
What's the actual difference between the two? To me they appear the same,
just expressed in a different way.
>
> Signed-off-by: Richard Leitner <richard.leitner@xxxxxxxxx>
> ---
> drivers/media/v4l2-core/v4l2-ctrls-defs.c | 1 +
> include/uapi/linux/v4l2-controls.h | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/drivers/media/v4l2-core/v4l2-ctrls-defs.c b/drivers/media/v4l2-core/v4l2-ctrls-defs.c
> index 1ea52011247accc51d0261f56eab1cf13c0624a0..f9ed7273a9f3eafe01c31b638e1c8d9fcf5424af 100644
> --- a/drivers/media/v4l2-core/v4l2-ctrls-defs.c
> +++ b/drivers/media/v4l2-core/v4l2-ctrls-defs.c
> @@ -1135,6 +1135,7 @@ const char *v4l2_ctrl_get_name(u32 id)
> case V4L2_CID_FLASH_FAULT: return "Faults";
> case V4L2_CID_FLASH_CHARGE: return "Charge";
> case V4L2_CID_FLASH_READY: return "Ready to Strobe";
> + case V4L2_CID_FLASH_DURATION: return "Strobe Duration";
>
> /* JPEG encoder controls */
> /* Keep the order of the 'case's the same as in v4l2-controls.h! */
> diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
> index 974fd254e57309e6def95b4a4f8e4de13a3972a7..80050cadb8377e3070ebbadc493fcd08b2c12c0b 100644
> --- a/include/uapi/linux/v4l2-controls.h
> +++ b/include/uapi/linux/v4l2-controls.h
> @@ -1173,6 +1173,7 @@ enum v4l2_flash_strobe_source {
>
> #define V4L2_CID_FLASH_CHARGE (V4L2_CID_FLASH_CLASS_BASE + 11)
> #define V4L2_CID_FLASH_READY (V4L2_CID_FLASH_CLASS_BASE + 12)
> +#define V4L2_CID_FLASH_DURATION (V4L2_CID_FLASH_CLASS_BASE + 13)
>
>
> /* JPEG-class control IDs */
>
--
Regards,
Sakari Ailus
