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Date:      Fri, 13 Nov 2009 09:19:11 +0200
From:      Krassimir Slavchev <krassi@bulinfo.net>
To:        Hans Petter Selasky <hselasky@c2i.net>
Cc:        freebsd-hardware@freebsd.org
Subject:   Re: USB SD, MMC, MS, CF card reader?
Message-ID:  <4AFD086F.4090009@bulinfo.net>
In-Reply-To: <200911111704.20112.hselasky@c2i.net>
References:  <4AFADA49.5070401@bulinfo.net> <200911111704.20112.hselasky@c2i.net>

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Hans Petter Selasky wrote:
> On Wednesday 11 November 2009 16:37:45 Krassimir Slavchev wrote:
>> Hi All,
>>
>> I have an old USB card reader which is not recognized by 8.0.
>> The reader is based on a C-Media CM320L chip.
>>
>> Does this reader need special handling or umass driver can be used?
>>
>> # usbconfig -u 7 -a 2 dump_info
>> ugen7.2: <product 0x5200 vendor 0x0d8c> at usbus7, cfg=0 md=HOST
>> spd=HIGH (480Mbps) pwr=ON
>>
>> # usbconfig -u 7 -a 2 dump_device_quirks
>>
> 
> Hi,
> 
> The umass quirks are currently not available through the USB quirks API.
> Can you do: dump_device_desc and dump_curr_config_desc ?
> You probably need to edit sys/dev/usb/storage/umass.c and add a device entry 
> there.

I have tried almost all possible protocol combinations but no luck.
With UMASS_PROTO_SCSI | UMASS_PROTO_BBB:

umass0: <vendor 0x0d8c product 0x5200, class 0/0, rev 2.00/1.00, addr 2>
on usbus7
umass0:  SCSI over Bulk-Only; quirks = 0x0000
umass0: Get Max Lun not supported (USB_ERR_TIMEOUT)
umass0:0:0:-1: Attached to scbus0

Adding NO_GETMAXLUN quirk:
umass0: <vendor 0x0d8c product 0x5200, class 0/0, rev 2.00/1.00, addr 2>
on usbus7
umass0:  SCSI over Bulk-Only; quirks = 0x0100
umass0:0:0:-1: Attached to scbus0

The same reader works on windows with 'Generic USB Mass Storage' driver
and in the chip documentation I found that it is 'Compliant with USB
Mass Storage Device Class specifications'.

May be something is handled differently?

Best Regards



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