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V4L/DVB (9953): em28xx: Add suport for debugging AC97 anciliary chips

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The em28xx driver can be coupled to an anciliary AC97 chip. This patch
allows read/write AC97 registers directly.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab
2008-12-22 13:18:27 -03:00
parent 4b00eb2534
commit 531c98e718
4 changed files with 25 additions and 2 deletions
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include/linux/videodev2.h
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@ -1376,6 +1376,7 @@ struct v4l2_streamparm {
#define V4L2_CHIP_MATCH_HOST 0 /* Match against chip ID on host (0 for the host) */
#define V4L2_CHIP_MATCH_I2C_DRIVER 1 /* Match against I2C driver ID */
#define V4L2_CHIP_MATCH_I2C_ADDR 2 /* Match against I2C 7-bit address */
#define V4L2_CHIP_MATCH_AC97 3 /* Match against anciliary AC97 chip */
struct v4l2_register {
__u32 match_type; /* Match type */