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 Here is my syslog when using OHCI: http://dennisn.dyndns.org/guest/pubstuff/ehci-bug/ohci-works.log The main differences that I notice are many "detected XactErr"s with ehci, but they don't seem to be too critical, until they (seem to) cause: 09:14:30 kernel: ehci_hcd 0000:00:13.2: devpath 8 ep2in 3strikes 09:14:30 kernel: usb-storage: Status code -71; transferred 76288/98304 09:14:30 kernel: usb-storage: -- unknown error 09:14:30 kernel: usb-storage: Bulk data transfer result 0x4 09:14:30 kernel: usb-storage: -- transport indicates error, resetting ... which seems to happen with "usb_stor_bulk_transfer_sglist: xfer" greater than about 512 bytes? (The transfers seem to complete with smaller xfers?) Ideas? Suggestions? -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
