Dear Mark
I have question about snd_soc_8_8_write
-----------------------------
static int snd_soc_8_8_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
u8 *cache = codec->reg_cache;
u8 data[2];
BUG_ON(codec->volatile_register);
data[0] = reg & 0xff;
data[1] = value & 0xff;
if (reg < codec->reg_cache_size)
cache[reg] = value;
if (codec->hw_write(codec->control_data, data, 2) == 2)
return 0;
else
return -EIO;
}
-----------------------------
I wounder this behavior.
if reg >= codec->reg_cache_size,
this functions will call hw_write
though cache[xx] ignore it.
And
even though if reg < codec->reg_cache_size,
if hw_write return error, cache[xx] value was still changed.
This is correct behavior ?
Or are there any reason ?
Best regards
--
Kuninori Morimoto
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