Le mardi 19 juin 2007 à 20:14 +0200, Oliver Neukum a écrit :
> Am Dienstag, 19. Juni 2007 schrieb Guillaume Bedot:
> > Hello,
> > 
> > I've just tried a PCI to USB2 card with a "ALi M5273 A1" chip.
> > Transferring a big file (a few hundreds MB) to an USB stick fails.
> 
> You are not the first to report a failure with ALi chips.
> 
> > Is this chip supposed to be supported ?
> 
> Yes.
> 
> > Is there some sonfig trick to use ?
> 
> No.
>  
> > How can I help ?
> 
> Does it fail with -EPROTO (-71) and a subsequent reset?

Do know about -EPROTO yet, but resets happen with the ALi chip, that
don't with the other cards.

Sometimes, all seem to work (from the GUI user point of view), but the
file is corrupted.
$ cmp -l /media/disk/700MB-file.iso /home/me/700MB-file.iso | wc -l
1229584

The only sign that something's gone wrong is in syslog.
Jun 20 10:41:17 littletux kernel: usb 3-6: reset high speed USB device
using ehci_hcd and address 4
Jun 20 10:42:38 littletux kernel: usb 3-6: reset high speed USB device
using ehci_hcd and address 4
Jun 20 10:44:57 littletux kernel: usb 3-6: reset high speed USB device
using ehci_hcd and address 4
Jun 20 10:45:45 littletux kernel: usb 3-6: reset high speed USB device
using ehci_hcd and address 4
Jun 20 10:47:12 littletux kernel: usb 3-6: reset high speed USB device
using ehci_hcd and address 4
Jun 20 10:47:47 littletux kernel: usb 3-6: reset high speed USB device
using ehci_hcd and address 4
Jun 20 10:49:10 littletux kernel: usb 3-6: reset high speed USB device
using ehci_hcd and address 4

Also, the transfer is rather slow ( the 1GB stick should allow up to
2MB/s in writing, and the speed can slow down to 1MB/s).


Let's play with usbmon, again, i hope it won't crash my computer every
now then this time :-)


Best regards,

Guillaume B.



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