[alsa-devel] RawMIDI behaviour with MidiFace 4x4

[Clemens Ladisch]

Kalvas, Taneli wrote:
> What is the policy with external contributions for the snd-usb-audio/midi?

See Documentation/SubmittingPatches.

> From my first session with the usb documents ("USB MIDI Devices 1.0")
> and the kernel code I could not find the flow-control for the midi
> interface buffer in either one.

The flow control is implicit in the USB bulk transfer protocol, i.e.,
the device must accept a packet only when it can handle it.  The host
controller hardware automatically retries sending until this succeeds.


Regards,
Clemens