Date: Sun, 26 Nov 2006 02:59:36 -0500 From: "David E. Cross" <crossd@cs.rpi.edu> To: freebsd-usb@freebsd.org Subject: Problem with 6.2-RC1 da0/umass and Mitsumi FDD Message-ID: <1164527976.18604.6.camel@localhost>
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I have a mitsumi USB FDD as follows under 6.2-RC1 (the same problem existed under 6.1-p10) umass0: MITSUMI MITSUMI USB FDD, rev 1.10/1.00, addr 2 umass0: UFI over CBI with CCI (using CBI); quirks = 0x0000 umass0:6:0:-1: Attached to scbus6 da0 at umass-sim0 bus 0 target 0 lun 0 da0: <MITSUMI USB FDD 070M 3.01> Removable Direct Access SCSI-0 device da0: 1.000MB/s transfers (as you can see I have already enabled USB_DEBUG) Reading from the device works, although it is SLOW. 4K/sec slow. Writing to the device does NOT work, it just hangs indefinitely (but the machine stays responsive, until I unplug the device at which point it panics.. but that's for another email) Kernel messages from writing are: umass0: CBI reset failed, TIMEOUT umass0: CBI bulk-in stall clear failed, TIMEOUT umass0: CBI bulk-out stall clear failed, TIMEOUT umass0: CBI reset failed, TIMEOUT umass0: CBI bulk-in stall clear failed, TIMEOUT umass0: CBI bulk-out stall clear failed, TIMEOUT umass0: CBI reset failed, TIMEOUT umass0: CBI bulk-in stall clear failed, TIMEOUT umass0: CBI bulk-out stall clear failed, TIMEOUT umass0: CBI reset failed, TIMEOUT umass0: CBI bulk-in stall clear failed, TIMEOUT umass0: CBI bulk-out stall clear failed, TIMEOUT umass0: CBI reset failed, TIMEOUT What I have tried (to date) to resolve this issue: 1) USB quirk to force the protocol to USB_CBI (instead of USB_CBI_I) 2) SCSI DA quirk to set NO_SYNC (a previous kernel message which I don't have a copy of made mention that there was an unsupported UFI call of 0x35 (verbage of that is wrong, but "unsupported" "UFI" and "0x35" is right) followed by a sync failure. Also in the mailing list I noticed some other similar problems with other devices were cured by that. Anyway, I am looking for some guidance before I beat against this some more. -- David E. Cross
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