Re: umass(4) regression in 9.0-RC1.

On Fri, Oct 28, 2011 at 09:11:42AM +0200, Hans Petter Selasky wrote:
> On Thursday 27 October 2011 20:51:15 Pawel Jakub Dawidek wrote:
> > On Thu, Oct 27, 2011 at 08:42:09PM +0200, Hans Petter Selasky wrote:
> > > This is the root HUB. Can you also show the actual device?
> > 
> > Sorry, it wasn't connected, here it goes:
> > 
> > ugen0.2: <USB2.0-CRW Generic> at usbus0, cfg=255 md=HOST spd=HIGH (480Mbps)
> > pwr=ON
> > 
> >   bLength = 0x0012
> >   bDescriptorType = 0x0001
> >   bcdUSB = 0x0200
> >   bDeviceClass = 0x0000
> >   bDeviceSubClass = 0x0000
> >   bDeviceProtocol = 0x0000
> >   bMaxPacketSize0 = 0x0008
> >   idVendor = 0x0bda
> >   idProduct = 0x0119
> >   bcdDevice = 0x1981
> >   iManufacturer = 0x0001  <retrieving string failed>
> >   iProduct = 0x0002  <retrieving string failed>
> >   iSerialNumber = 0x0003  <retrieving string failed>
> >   bNumConfigurations = 0x0001
> 
> Hi,
> 
> The control request in question is mandatory according to the UMASS 
> specification, and I wonder why it times out and all other control requests 
> aswell.
> 
> Could you try setting the no-synchronize cache quirk instead, and then plug 
> your device.
> 
> I'm sorry, but this problem needs further investigation before we can make a 
> patch.

It wasn't immediately obvious for me how to set the no-synchronize cache
quirk, but I think I found it:

	# usbconfig add_quirk UQ_MSC_NO_SYNC_CACHE

And it seems to work:

umass0: <Generic USB2.0-CRW, class 0/0, rev 2.00/19.81, addr 2> on usbus0
(probe0:umass-sim0:0:0:0): TEST UNIT READY. CDB: 0 0 0 0 0 0
(probe0:umass-sim0:0:0:0): CAM status: SCSI Status Error
(probe0:umass-sim0:0:0:0): SCSI status: Check Condition
(probe0:umass-sim0:0:0:0): SCSI sense: UNIT ATTENTION asc:28,0 (Not ready to ready change, medium may have changed)
da0 at umass-sim0 bus 0 scbus13 target 0 lun 0
da0: <Generic- SD/MMC 1.00> Removable Direct Access SCSI-0 device
da0: 40.000MB/s transfers
da0: 30799MB (63076352 512 byte sectors: 255H 63S/T 3926C)

-- 
Pawel Jakub Dawidek                       http://www.wheelsystems.com
FreeBSD committer                         http://www.FreeBSD.org
Am I Evil? Yes, I Am!                     http://yomoli.com