Ralf Beck wrote:
Am 07.05.2014 19:39, schrieb Clemens Ladisch:
Ralf Beck wrote:
Rationale: Bitwig Studio (and possibly other rawmidi clients) enumerate the Midi I/Os by substream names. With the current rawmidi implementation, the name is an empty string and only the USB mididriver changes it to a meaningful value after allocation.
Many RawMIDI devices have only one substream, or multiple substreams that are merged into one port. For these, separate substream names do not make sense.
Any having no substream name at all makes more sense?
The device itself already has a name.
Apparently, Bitwig has not been tested with any driver except snd-usb-audio.
This patch sets a default substream name of the form "somename x-y-z"
The ID string is not meant to be a name.
Would it be acceptable, if i remove the ID string and only return x-y-z ?
No; you should use the device name or something like that.
But the substream name buffer is rather short; a better idea would be to fix all rawmidi drivers to set the substream name(s) to the appropriate value.
Other than the alsa developers i would call creating rawmidi substreams, but not assigning a name to them a bug.
For most drivers, substreams do not have a logical identity separate from the device.
Regards, Clemens