2010/8/15 Dennis Nezic <dennisn@xxxxxxxxxxxxxxxxxx>: > On Sat, 14 Aug 2010 10:05:43 +0800, Ming Lei wrote: >> 2010/8/14 Dennis Nezic >> <dennisn@xxxxxxxxxxxxxxxxxx>: >> > My usb2.0 multi-card reader, 058f:6366 Alcor Micro Corp., with >> > vanilla kernel 2.6.35.1, doesn't seem to work with ehci_hcb. It >> > does work with ohci_hcb, so I don't think it's a hardware problem >> > necessarily? >> > >> > Here is my syslog when using EHCI: >> > http://dennisn.dyndns.org/guest/pubstuff/ehci-bug/ehci-fails.log >From the usb storage debug log, seems the ehci transfer failure always happened after CBW is sent out, so maybe a quirk is needed to add a delay after sending out CBW and before data transfer or sending out CSW. Please try the attachment patch to see if the issue can be fixed, also provide your usb storage debug log like before if not fixed. thanks, -- Lei Ming
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058f_6366_go_slow.patch
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