20 Jun
2003
20 Jun
'03
7:15 a.m.
Joseph Zitt wrote:
One of lsusb's source files, I guess.
Clemens Ladisch wrote:
You previously used the OSS drivers (including "audio"). Does your
computer still crash if you run "modprobe snd-usb-audio"?
Joseph Zitt wrote:
OK, I did that, and the system didn't crash when I hooked up the UA-30. [...] I have a Roland UA-30 USB Audio device, but
so far I've
found that plugging it in when the system is running crashes the
machine completely, and that the machine fails to finish booting
when I boot it up with the device already hooked in.
Add the lines
audio
snd-usb-audio
to your /etc/hotplug/blacklist file (or create it if it doesn't
exist). This should prevent the crashing driver from being loaded
automatically. And please
post the output of "lsusb -v" (when the UA-30 is
connected)
Here's the output. That "Invalid product/subclass spec at line 2650" is
interesting,
What file would the errant line 2650 be in? ... as is the "cannot get config descriptor 0,
Connection timed
out (110)" for the UA-30.
This would have been the interesting part.
There are two drivers for UHCI controllers, uhci and usb-uhci.
Sometimes, one of them works and the other one doesn't. Pleasy do
"rmmod usb-uhci" and "modprobe uhci", then try to run lsusb again.
If this doesn't help, you can try out a newer version of the usbutils
package.
iManufacturer 1 Roland
iProduct 2 UA-30 (44100Hz, Analog REC)
It seems the UA-30 has switches to select the recording format. Maybe
another combination might work.
[root@localhost mp3]# cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 0.9.0rc8.
Compiled on Mar 14 2003 for kernel 2.4.21-0.13mdk with versioned symbols.
This is a shiny new kernel with a rather old ALSA version. Please try
a more recent ALSA version, there have been some changes to the
snd-usb-audio driver since then.
HTH
Clemens