USB devices fail to attach as umass scsi da[n]

Patrick Lamaizière patfbsd at davenulle.org
Sat Jan 17 04:20:25 PST 2009


Le Fri, 16 Jan 2009 14:44:59 -0500,
grarpamp <grarpamp at gmail.com> a écrit :

> GENERIC, RELENG_7 a few days past the 7.1 release.
> SuperMicro 370DER motherboard, most recent bios.
> The Nikon is set to mass storage. The RCA has no such option.
> Both have the latest firmware.
> 
> By the way, the RCA records natively in mp3 format. Handy as most
> seem to use some closed format. Worth a try if you need one.
> 
> # camcontrol devl - should be: (pass2,da2) when attach is complete
> scbus2 on umass-sim0 bus 0:
> < RCA_TKCF2494_US 1.00>            at scbus2 target 0 lun 0
> (da2,pass2)
> 
> # dmesg - reordered a bit
> umass0: <RCA RCA_TKCF2494_US USB DEVICE, class 0/0, rev 1.10/1.00,
> addr 2> on uhub0
> umass0:2:0:-1: Attached to scbus2
> pass2 at umass-sim0 bus 0 target 0 lun 0
> pass2: < RCA_TKCF2494_US 1.00> Removable Direct Access SCSI-0 device
> pass2: 1.000MB/s transfers
> GEOM: da2 at umass-sim0 bus 0 target 0 lun 0
> new disk da2
> da2: < RCA_TKCF2494_US 1.00> Removable Direct Access SCSI-0 device
> da2: 1.000MB/s transfers
> da2: 122MB (251136 512 byte sectors: 64H 32S/T 122C)
> 
> (da2:umass-sim0:0:0:0): Synchronize cache failed, status == 0x4, scsi
> status == 0x0

You can try to add a quirk for this device :
http://www.root.org/~nate/freebsd/scsi/quirks.html

[not sure if this is uptodate, i did it in the past (RELENG_5/6) for
my mp3 player]

I would start with a DA_Q_NO_SYNC_CACHE quirk.


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