ALSAHwdepget_hwdep_sysname

gboolean
alsahwdep_get_hwdep_sysname (
  guint card_id,
  guint device_id,
  char** sysname,
  GError** error
)

Allocate sysname for hwdep device and return it when it exists.

Nodes under sound subsystem in sysfs are used to gather the information.

`card_id`	`guint`
	The numeridcal ID of sound card.
`device_id`	`guint`
	The numeric ID of hwdep device for the sound card.
`sysname`	`char**`
	The string for sysname of hwdep device.
	The argument will be set by the function.
	The called function takes ownership of the data, and is responsible for freeing it.
	The value is a NUL terminated UTF-8 string.
`error`	`GError **`
	The return location for a `GError*`, or `NULL`.

Returns:	`gboolean`
	`TRUE` when the overall operation finishes successfully, else `FALSE`.