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[media] gspca_pac7302: extend register documentation

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Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Frank Schäfer 2012-09-09 15:02:24 -03:00 committed by Mauro Carvalho Chehab
parent 0e68785db5
commit 780d61704c
1 changed files with 9 additions and 0 deletions
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9
drivers/media/usb/gspca/pac7302.c
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@ -29,6 +29,15 @@
* Register page 0:
*
* Address Description
* 0x02 Red balance control
* 0x03 Green balance control
* 0x04 Blue balance control
* Valus are inverted (0=max, 255=min).
* The Windows driver uses a quadratic approach to map
* the settable values (0-200) on register values:
* min=0x80, default=0x40, max=0x20
* 0x0f-0x20 Colors, saturation and exposure control
* 0xa2-0xab Brightness, contrast and gamma control
* 0xb6 Sharpness control (bits 0-4)
*
* Register page 1: