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