Date: Fri, 2 Dec 2011 16:43:51 -0500 From: Ed Maste <emaste@freebsd.org> To: Hans Petter Selasky <hselasky@c2i.net> Cc: freebsd-usb@freebsd.org Subject: Re: USB flash regression between 9.0-BETA1 and r227413 Message-ID: <20111202214351.GA65599@sandvine.com> In-Reply-To: <201112022144.25817.hselasky@c2i.net> References: <20111202022550.GA78199@sandvine.com> <201112022144.25817.hselasky@c2i.net>
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On Fri, Dec 02, 2011 at 09:44:25PM +0100, Hans Petter Selasky wrote: > On Friday 02 December 2011 03:25:50 Ed Maste wrote: > > After rebuilding and installing a new kernel from a couple of weeks ago > > my embedded USB flash no longer works. > > > > Working kernel was: > > FreeBSD 9.0-BETA1 #1 r225223M: Sat Aug 27 22:21:54 EDT 2011 > > Can you try to add the no-synchronize cache quirk for your device by using > usbconfig? Obviously the manufacturer did not test all SCSI commands! > > --HPS Thanks, that does it. # usbconfig add_quirk UQ_MSC_NO_SYNC_CACHE This device is: ugen3.2: <Real SSD eUSB 16GB Micron Technology> at usbus3, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON bLength = 0x0012 bDescriptorType = 0x0001 bcdUSB = 0x0200 bDeviceClass = 0x0000 bDeviceSubClass = 0x0000 bDeviceProtocol = 0x0000 bMaxPacketSize0 = 0x0040 idVendor = 0x0634 idProduct = 0x0655 bcdDevice = 0x1110 iManufacturer = 0x0001 <retrieving string failed> iProduct = 0x0002 <retrieving string failed> iSerialNumber = 0x0003 <retrieving string failed> bNumConfigurations = 0x0001 Should be easy to quirk now, although it seems there are a number of devices afflicted with this same problem. I wonder if other operating systems just don't use this command? -Ed
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