diff options
Diffstat (limited to 'sound/ac97_bus.c')
| -rw-r--r-- | sound/ac97_bus.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/sound/ac97_bus.c b/sound/ac97_bus.c index 1484fc178fa4..8a44297964f5 100644 --- a/sound/ac97_bus.c +++ b/sound/ac97_bus.c @@ -46,11 +46,14 @@ static bool snd_ac97_check_id(struct snd_ac97 *ac97, unsigned int id, * @id_mask: Mask that is applied to the device ID before comparing to @id * * This function resets the AC'97 device. If @try_warm is true the function - * first performs a warm reset. If the warm reset is successful the function - * returns 1. Otherwise or if @try_warm is false the function issues cold reset - * followed by a warm reset. If this is successful the function returns 0, - * otherwise a negative error code. If @id is 0 any valid device ID will be - * accepted, otherwise only the ID that matches @id and @id_mask is accepted. + * first performs a warm reset. If @try_warm is false the function issues + * cold reset followed by a warm reset. If @id is 0 any valid device ID + * will be accepted, otherwise only the ID that matches @id and @id_mask + * is accepted. + * Returns: + * * %1 - if warm reset is successful + * * %0 - if cold reset and warm reset is successful + * * %-ENODEV - if @id and @id_mask not matching */ int snd_ac97_reset(struct snd_ac97 *ac97, bool try_warm, unsigned int id, unsigned int id_mask) |