pub fn card_sysname(card_id: u32) -> Result<GString, Error>Expand description
Allocate sysname for the sound card and return it when it exists.
Nodes under sound subsystem in sysfs are used to gather the information.
§card_id
The numeric ID of sound card.
§Returns
true when the overall operation finishes successfully, else false.
§sysname
The string for sysname of the sound card.