diff options
| author | Frank Schaefer <fschaefer.oss@googlemail.com> | 2013-02-10 20:05:11 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-03-04 18:30:18 +0100 |
| commit | 8168532712fe0c662f22180755fb89103a2e6558 (patch) | |
| tree | c057eae582bb97b1e457f2b2f233b0c60b76e2c7 /drivers/media/usb/em28xx/em28xx-reg.h | |
| parent | [media] em28xx: do not claim VBI support if the device is a camera (diff) | |
| download | linux-8168532712fe0c662f22180755fb89103a2e6558.tar.xz linux-8168532712fe0c662f22180755fb89103a2e6558.zip | |
[media] em28xx: introduce #define for maximum supported scaling values (register 0x30-0x33)
The maximum supported scaling value for registers 0x30+0x31 (horizontal scaling)
and 0x32+0x33 (vertical scaling) is 0x3fff, which corresponds to 20% of the
input frame size.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/usb/em28xx/em28xx-reg.h')
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-reg.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-reg.h b/drivers/media/usb/em28xx/em28xx-reg.h index 885089e22bcd..0a3cb04fbeae 100644 --- a/drivers/media/usb/em28xx/em28xx-reg.h +++ b/drivers/media/usb/em28xx/em28xx-reg.h @@ -152,6 +152,8 @@ #define EM28XX_R31_HSCALEHIGH 0x31 #define EM28XX_R32_VSCALELOW 0x32 #define EM28XX_R33_VSCALEHIGH 0x33 +#define EM28XX_HVSCALE_MAX 0x3fff /* => 20% */ + #define EM28XX_R34_VBI_START_H 0x34 #define EM28XX_R35_VBI_START_V 0x35 #define EM28XX_R36_VBI_WIDTH 0x36 |