[linux-audio-user] USX2Y rawusb mode

[Karsten Wiese]

Am Samstag 05 März 2005 15:39 schrieb Spencer Russell:
> On Sat, Mar 05, 2005 at 12:25:13PM +0100, Karsten Wiese wrote:
> > Am Samstag 05 M?rz 2005 09:20 schrieb Spencer Russell:
> > > OK, So as per these several suggestions, I've now tried the US428
> > > with a vanilla 2.6.11, a 2.6.11 with Ingo's preempt patch and
> > > full preemption, nrpacks=4, apm and acpi not compiled in the
> > > kernel, and without my usb ethernet card plugged in. I'm still
> > > getting the "Sequence Error!" messages, then a couple seconds

how long does it work until "Sequence Error!"?
any hints that it happens in regular intervals?

> > > later qjackctl dissapears.
> > 
> > Please post the output of
> > 	$cat /proc/interrupts
> > maybe the usb-interrupt is also busy with something else...
> > 
> 
> srussell at slingshot:~$ cat /proc/interrupts
>            CPU0       
>   0:   23968893          XT-PIC  timer  0/68893
>   1:       5085          XT-PIC  i8042  0/5085
>   2:          0          XT-PIC  cascade  0/0
>   7:          0          XT-PIC  parport0  0/0
>   8:          3          XT-PIC  rtc  0/3
>  10:          0          XT-PIC  VIA686A  0/0
>  11:    9538103          XT-PIC  yenta, uhci_hcd  0/38103
>  12:      36200          XT-PIC  i8042  0/36200
>  14:     101724          XT-PIC  ide0  0/1723
>  15:         13          XT-PIC  ide1  1/12
> NMI:          0 
> LOC:          0 
> ERR:          0
> MIS:          0
> 
> 
> Hmm, it does look like my PCMCIA driver is also on the same
> interrupt. I don't have any PCMCIA cards in now, but could that
> still be causing problems?

only if yenta is in front of uhci_hcd interrupt handler chain wise.
just recheck after
	$rmmod yenta

might make sure its gone with
	$lsmod
post above.

it looks like something keeps the usb's interrupt from being handled right in time.
like
 bios: no idea.....

 harddisk: dma enabled?
	$hdparm /dev/hda
post above also.

 video: recheck in text mode:
	$telinit 3 


> 
> > Also make shure that any option in your bios sounding like "usb
> > legacy support" is disabled.
> > 
> 
> I have kind of a strange BIOS, where pretty much the only option
> I have when I go into the setup is boot order, there isn't
> anything about USB support.
> 
> Thanks for the help,
> Spencer
>