tree 2f5a40c24c58a456bf6882b372f8d7620cb9d9b0
parent 2e56d933fd967a72d5ee4250e1cb6f9de29d936f
author Sylwester Nawrocki <s.nawrocki@samsung.com> 1315174134 -0300
committer Mauro Carvalho Chehab <mchehab@redhat.com> 1320352149 -0200

[media] v4l: Add AUTO option for the V4L2_CID_POWER_LINE_FREQUENCY control

V4L2_CID_POWER_LINE_FREQUENCY control allows applications to instruct
a driver what is the power line frequency so an appropriate filter
can be used by the device to cancel flicker by compensating the light
intensity ripple. Currently in the menu we have entries for 50 Hz and
60 Hz and for entirely disabling the anti-flicker filter.
However some devices are capable of automatically detecting the
frequency, so add V4L2_CID_POWER_LINE_FREQUENCY_AUTO entry for them.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>