forked from Minki/linux
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>
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@ -196,6 +196,12 @@ int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len)
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return rc;
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}
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/* Write a single register */
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int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val)
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{
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return em28xx_write_regs(dev, reg, &val, 1);
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}
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/*
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* em28xx_write_reg_bits()
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* sets only some bits (specified by bitmask) of a register, by first reading
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@ -555,6 +555,8 @@ int em28xx_read_reg(struct em28xx *dev, u16 reg);
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int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
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int len);
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int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
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int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
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int em28xx_audio_analog_set(struct em28xx *dev);
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int em28xx_audio_setup(struct em28xx *dev);
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