From b69724899440289ab258ff417c2d6aa104c70310 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Thu, 20 Nov 2008 09:52:20 -0300 Subject: 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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/em28xx/em28xx-core.c | 6 ++++++ drivers/media/video/em28xx/em28xx.h | 2 ++ 2 files changed, 8 insertions(+) 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); -- cgit v1.2.3