*
* Add a virtual slave control to the given master element created via
* snd_ctl_create_virtual_master() beforehand.
- * Returns zero if successful or a negative error code.
*
* All slaves must be the same type (returning the same information
* via info callback). The function doesn't check it, so it's your
* at most two channels,
* logarithmic volume control (dB level) thus no linear volume,
* master can only attenuate the volume without gain
+ *
+ * Return: Zero if successful or a negative error code.
*/
static inline int
snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave)
* When the control peeks the hardware values directly and the value
* can be changed by other means than the put callback of the element,
* this function should be used to keep the value always up-to-date.
+ *
+ * Return: Zero if successful or a negative error code.
*/
static inline int
snd_ctl_add_slave_uncached(struct snd_kcontrol *master,