Re: [PATCH v7 16/34] [media] add Omnivision OV5640 sensor driver

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi!

> >>>+	/* Auto/manual exposure */
> >>>+	ctrls->auto_exp = v4l2_ctrl_new_std_menu(hdl, ops,
> >>>+						 V4L2_CID_EXPOSURE_AUTO,
> >>>+						 V4L2_EXPOSURE_MANUAL, 0,
> >>>+						 V4L2_EXPOSURE_AUTO);
> >>>+	ctrls->exposure = v4l2_ctrl_new_std(hdl, ops,
> >>>+					    V4L2_CID_EXPOSURE_ABSOLUTE,
> >>>+					    0, 65535, 1, 0);
> >>
> >>Is exposure_absolute supposed to be in microseconds...?
> >
> >Yes.
> 
> According to the docs V4L2_CID_EXPOSURE_ABSOLUTE is in 100 usec units.
> 
>  OTOH V4L2_CID_EXPOSURE has no defined unit, so it's a better fit IMO.
> >Way more drivers appear to be using EXPOSURE than EXPOSURE_ABSOLUTE, too.
> 
> Done, switched to V4L2_CID_EXPOSURE. It's true, this control is not
> taking 100 usec units, so unit-less is better.

Thanks. If you know the units, it would be of course better to use
right units...

Best regards,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Attachment: signature.asc
Description: Digital signature

_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel

[Index of Archives]     [Linux Driver Backports]     [DMA Engine]     [Linux GPIO]     [Linux SPI]     [Video for Linux]     [Linux USB Devel]     [Linux Coverity]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux