Hi,
Firstly, a disclaimer. I think it is a real OHCI problem. However there
is a chance that the driver combination is at fault - please test
Dieter Lange wrote:
> CMD Technology USB0670 PCI-USB board ("the new one" according to CMD's
> docs) and a USB-Parallel cable with Lucent chip USS720 on a HP 694C
> printer.
The USS720 cable can run using the printer driver or the USS720 driver.
Basically the USS720 driver looks like a parallel port, while the
printer looks like a conventional /dev/lp entry.
Try it without USS720 compiled in.
> BTW: is starting with "T: Bus=01" correct ? Do I have to download any
> firmware (which to me should sound awkward - with hot plugging at least)
Yep. Look in /usr/src/linux/Documentation/usb or at
http://LinuxUSBGuide.sourceforge.net for instructions on how to load it.
> root()@lghh2(p5)lg(15:33:31)12# cat /proc/bus/usb/devices
> T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
> B: Alloc= 17/900 us ( 2%), #Int= 1, #Iso= 0
> D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
> P: Vendor=0000 ProdID=0000 Rev= 0.00
> C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
> I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
> E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms
> T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= -1 Spd=12 MxCh= 0
> D: Ver= 0.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 0 #Cfgs= 0
> P: Vendor=0000 ProdID=0000 Rev= 0.00
Is this the whole thing? Did you have a device plugged in when you did
this?
> root()@lghh2(p5)lg(15:39:23)14# cat /proc/bus/usb/drivers
> uss720
> usblp
> hub
> usbdevfs
Just one of the drivers.
Brad Hards
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