[alsa-devel] [PATCH] Re: Small Regression in midi for M-Audio Fast Track Ultra.

[Grant Diffey]

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,
> SerialNumber=0
> [  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.
>
> Grant.
>
>
>
> 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,
>> again.
>> 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).
>>
>> Regards,
>>
>> Felix
>>
>
>
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