linux-kernel - Re: USB memory card reader and 64MB SD card

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Message-Id: <1231908019.4299.40.camel@127>
Date:	Tue, 13 Jan 2009 20:40:19 -0800
From:	rhubbell <rhubbell@...bbell.com>
To:	Robert Hancock <hancockr@...w.ca>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: USB memory card reader and 64MB SD card - 2.6.28-git14

After just replying to this... I plugged the card reader
into the PS3 and can read both SD cards, no problem.

It does seem to point back to the kernel.

I'll try to figure out how to get more info out of the USB bus.

Enable verbose for starters and see where that goes.

On Tue, 2009-01-13 at 21:31 -0600, Robert Hancock wrote:
> rhubbell wrote:
> > Darn, I meant to respond to the list also.
> > Anyway there is no dmesg output for the card. 
> > The dmesg output looks correct with the 128MB card.
> > 
> > Here's for the 128:
> > scsi0 : SCSI emulation for USB Mass Storage devices
> > usb-storage: device found at 2
> > usb-storage: waiting for device to settle before scanning
> > scsi 0:0:0:0: Direct-Access              USB Card Reader  1.01 PQ: 0 ANSI: 0 CCS
> > sd 0:0:0:0: [sda] 251904 512-byte hardware sectors: (128 MB/123 MiB)
> > sd 0:0:0:0: [sda] Write Protect is off
> > sd 0:0:0:0: [sda] Mode Sense: 43 00 00 00
> > sd 0:0:0:0: [sda] Assuming drive cache: write through
> > sd 0:0:0:0: [sda] 251904 512-byte hardware sectors: (128 MB/123 MiB)
> > sd 0:0:0:0: [sda] Write Protect is off
> > sd 0:0:0:0: [sda] Mode Sense: 43 00 00 00
> > sd 0:0:0:0: [sda] Assuming drive cache: write through
> >  sda: sda1
> > sd 0:0:0:0: [sda] Attached SCSI removable disk
> > sd 0:0:0:0: Attached scsi generic sg0 type 0
> > usb-storage: device scan complete
> 
> That output seems rather normal.. If you're not getting anything like 
> that with the other card though, I would tend to suspect some kind of 
> issue with the card, the reader or some kind of incompatibility between 
> them. Certainly all the USB resets from the other output would tend to 
> suggest the reader isn't responding properly with that card installed..

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