From: Clemens Ladisch <clemens@ladisch.de>
To: "Kalvas, Taneli" <taneli.v.m.kalvas@jyu.fi>,
"alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>
Subject: Re: RawMIDI behaviour with MidiFace 4x4
Date: Wed, 25 Mar 2015 22:45:40 +0100 [thread overview]
Message-ID: <55132C84.5030506@ladisch.de> (raw)
In-Reply-To: <6A72E9C91650BD49A6D9B305755BC04C42D8CE0F@mbs1.ad.jyu.fi>
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
prev parent reply other threads:[~2015-03-25 21:46 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-07 17:26 RawMIDI behaviour with MidiFace 4x4 Kalvas, Taneli
2015-03-09 8:38 ` Ricard Wanderlof
2015-03-09 8:47 ` Clemens Ladisch
2015-03-09 11:37 ` Kalvas, Taneli
2015-03-09 14:29 ` Ricard Wanderlof
2015-03-09 18:40 ` Clemens Ladisch
2015-03-09 8:43 ` Clemens Ladisch
2015-03-09 19:22 ` Kalvas, Taneli
2015-03-09 21:47 ` Clemens Ladisch
2015-03-10 7:32 ` Kalvas, Taneli
2015-03-10 8:02 ` Clemens Ladisch
2015-03-24 6:42 ` Kalvas, Taneli
2015-03-25 21:45 ` Clemens Ladisch [this message]
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