[ltp] SD card reader on X41

Florian Reitmeir linux-thinkpad@linux-thinkpad.org
Mon, 11 Sep 2006 11:35:39 +0200


Hi,


On Mon, 11 Sep 2006, Joakim Lagerqvist wrote:

> I currently trying to get my built in SD card reader working on my X41
> with fedora 5 system (kernel 2.6.17) but so far without success, perhaps
> someone on this list have any idea on how to proceed?
> 
> The modules seems to load fine (mmc_block, wbsd, sdhci, mmc_core) and
> the card shows up as /dev/mmcblk0 but when I try to partition the card
> (which is a 2GB kingston 50X(?)) with fdisk the following comes up:
> 
> "Warning: invalid flag 0x0000 of partition table 4 will be corrected by
> w(rite)"
> 
> I don't know if this is a part of the problem but when I create a new
> partition it shows up in fdisk as:
> 
> /dev/mmcblk0p1               1       30552     1955312   83  Linux
> 
> But it does not show up in /dev/ after (w)rite:
> 
> # ls /dev/mmcblk0*
> /dev/mmcblk0
> #
> 
> If I use an USB card reader everything works OK so I assume that the
> actual memory card should be fine.

the kernel sdhci driver is at the time very unstable (especial with 2gb
cards), did you check 'dmesg' for kernel errors on writing? 

-- 
Florian Reitmeir