TononixOS/ubports_kernel_google_msm
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

V4L/DVB (5304): Improve chip matching in v4l2_register

Browse Source 
The chip matching in struct v4l2_register for VIDIOC_DBG_G/S_REGISTER 
was rather primitive. It could not be extended to other busses besides 
i2c and it lacked a way to.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hans Verkuil
2007-02-23 20:55:14 -03:00
committed by Mauro Carvalho Chehab
parent d55c7aec66
commit f3d092b84a
14 changed files with 70 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
include/linux/videodev2.h
View File

@@ -1306,10 +1306,17 @@ struct v4l2_streamparm
*/
/* VIDIOC_DBG_G_REGISTER and VIDIOC_DBG_S_REGISTER */
#define V4L2_CHIP_MATCH_ALWAYS 0 /* Match always (match_chip is not used) */
#define V4L2_CHIP_MATCH_HOST 1 /* Match against chip ID on host (0 for the host) */
#define V4L2_CHIP_MATCH_I2C_DRIVER 2 /* Match against I2C driver ID */
#define V4L2_CHIP_MATCH_I2C_ADDR 3 /* Match against I2C 7-bit address */
struct v4l2_register {
__u32 match_type; /* Match type */
__u32 match_chip; /* Match this chip, meaning determined by match_type */
__u64 reg;
__u32 i2c_id; /* I2C driver ID of the I2C chip, or 0 for the host */
__u32 val;
__u64 val;
};
/*