[alsa-devel] [PATCH] Re: Small Regression in midi for M-Audio Fast Track Ultra.
gdiffey at gmail.com
Tue Apr 26 11:42:06 CEST 2011
oh here's a git patch if that helps
On Tue, Apr 26, 2011 at 7:17 PM, Grant Diffey <gdiffey at gmail.com> wrote:
> So I finally got around to building a new kernel today.
> and after rebooting I get:
> [ 131.832084] usb 2-1: new high speed USB device using ehci_hcd and
> address 3
> [ 131.969795] usb 2-1: config 1 interface 3 altsetting 0 bulk endpoint 0x7
> has invalid maxpacket 8
> [ 131.969800] usb 2-1: config 1 interface 3 altsetting 0 bulk endpoint
> 0x87 has invalid maxpacket 8
> [ 131.970886] usb 2-1: New USB device found, idVendor=0763, idProduct=2080
> [ 131.970890] usb 2-1: New USB device strings: Mfr=1, Product=2,
> [ 131.970892] usb 2-1: Product: Fast Track Ultra
> [ 131.970894] usb 2-1: Manufacturer: M-Audio
> [ 132.060121] usbcore: registered new interface driver snd-usb-audio
> nevyn at cetacea:~$ amidi -l
> Dir Device Name
> IO hw:1,0,0 Fast Track Ultra MIDI 1
> Which is excellent and solves my problem.
> now to find and apply that mixer patch.
> On Thu, Apr 21, 2011 at 6:25 AM, Felix Homann <linuxaudio at showlabor.de>wrote:
>> Sorry, Clemens,
>> I must have messed around with too many Alsa versions on my machine,
>> Your suggested fix _does_ fix the issue!
>> Would you mind adding this to the git tree? Or shall I prepare a patch?
>> Am 18.04.2011 11:16, schrieb Clemens Ladisch:
>>> Try replacing the comment with:
>>>> .iface = 3,
>>>> .type = QUIRK_MIDI_STANDARD_INTERFACE
>> In the meantime I started a bisect session on the mainline kernel. The
>> cause of this issue lies in the refactoring done last year. I couldn't
>> identify the exact patch introducing the regression, though, since starting
>> at step 10 the kernels would not boot. See the corresponding git bisect log
>> (the last revision is the first one that would not boot).
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