Date: Fri, 28 Oct 2011 07:27:19 +0200 From: =?ISO-8859-15?Q?Gustau_P=E9rez?= <gperez@entel.upc.edu> To: Hans Petter Selasky <hselasky@c2i.net> Cc: freebsd-usb@freebsd.org Subject: Re: Quirk for a USB mass storage device Message-ID: <4EAA3D37.4060909@entel.upc.edu> In-Reply-To: <201110272028.40342.hselasky@c2i.net> References: <4EA9127E.80504@entel.upc.edu> <201110272028.40342.hselasky@c2i.net>
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Al 27/10/2011 20:28, En/na Hans Petter Selasky ha escrit: > On Thursday 27 October 2011 10:12:46 Gustau Pérez wrote: >> Hi, >> >> I'm running FreeBSD 10.0 r226042 on AMD64 and I'm having problems >> with the following device: >> >> umass0: <Kingston DataTraveler 200, class 0/0, rev 2.00/1.10, >> addr 7> on usbus0 >> umass0: SCSI over Bulk-Only; quirks = 0x4001 >> umass0: Get Max Lun not supported (USB_ERR_TIMEOUT) >> umass0:5:0:-1: Attached to scbus5 >> >> as you can see, UQ_MSC_NO_GETMAXLUN should be set to use the device. >> As it is a 64Gb mass storage I would like to use it. >> >> I tried to manually add the quirk and it worked. Later on I tried >> with 9.0Beta2/i386 on the same machine and the problem also appeared. So >> I made a patch (which works on CURRENT, did not try with STABLE) to add >> the quirk, which is attached. >> >> Hans: is it necessary to fill a PR with the patch or would it be >> enough with the inline patch? > Hi Gustau, > > Does this device work at all without this patch? > > I was thinking to auto detect this behaviour instead. > > --HPS It did not work without the quirk. The corresponding /dev/daX device never appeared. After manually setting the quirk I could use it by unplugging and re-plugging the device. I see a few number of devices using this quirk. However many of them use other quirks too. So auto detecting this behavior would be good for those pseudo-scsi devices having only problems with LUN detection. Please let me know if you want me to test any patch or you want me to check any code. Gushome | help
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