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| author | Devin Heitmueller <devin.heitmueller@gmail.com> | 2008-11-20 09:52:20 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-29 17:53:36 -0200 |
| commit | b69724899440289ab258ff417c2d6aa104c70310 (patch) | |
| tree | 226c171b4857b39d279d02567d2fe22b62b17101 /drivers/media | |
| parent | f8de18d4308317a1c088fb8852ed0516124521b1 (diff) | |
| download | kernel-crypto-b69724899440289ab258ff417c2d6aa104c70310.tar.gz kernel-crypto-b69724899440289ab258ff417c2d6aa104c70310.tar.xz kernel-crypto-b69724899440289ab258ff417c2d6aa104c70310.zip | |
V4L/DVB (9657): em28xx: add a functio to write on a single register
Introduce a new function that writes to a single register. This is
useful because the vast majority of register writes are a single
register, and this format permits or'ing register value bits together.
Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-core.c | 6 | ||||
| -rw-r--r-- | drivers/media/video/em28xx/em28xx.h | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c index 1cf5b443092..9de0f5017f3 100644 --- a/drivers/media/video/em28xx/em28xx-core.c +++ b/drivers/media/video/em28xx/em28xx-core.c @@ -196,6 +196,12 @@ int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len) return rc; } +/* Write a single register */ +int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val) +{ + return em28xx_write_regs(dev, reg, &val, 1); +} + /* * em28xx_write_reg_bits() * sets only some bits (specified by bitmask) of a register, by first reading diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h index 6d04ebf46e7..4fde52bd7e9 100644 --- a/drivers/media/video/em28xx/em28xx.h +++ b/drivers/media/video/em28xx/em28xx.h @@ -555,6 +555,8 @@ int em28xx_read_reg(struct em28xx *dev, u16 reg); int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, int len); int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); +int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); + int em28xx_audio_analog_set(struct em28xx *dev); int em28xx_audio_setup(struct em28xx *dev); |