Discussion about the Linux wbsd driver ()

Stian B. Barmen | 21 Mar 2006 15:40

Problems on Ubuntu Dapper, custom kernel 2.6.16

I have just installed a custom kernel on the fresh 2.6.16 version. The
problem on Dapper is the lack of mmc_block in the 2.6.15 kernel headers.
Anyways, the 2.6.16 kernel seems to work nice, and the wbsd driver loads
with no errors as does mmc:

[4294682.474000] mmc0: W83L51xD id 7112 at 0x248 irq 6 FIFO PnP
[4294682.536000] mmcblk0: mmc0:a95c SD01G 992000KiB
[4294682.536000]  mmcblk0: p1
[4294956.266000] mmcblk0: mmc0:a95c SD01G 992000KiB

root <at> darkstar:/lib/firmware# lsmod |grep wbsd
wbsd                   19400  0
mmc_core               25472  2 mmc_block,wbsd

But when I put in a SD card in the reader I get these messages:

[4295600.121000] mmcblk0: mmc0:a95d  992000KiB
[4295600.206000] generic_make_request: Trying to access nonexistent
block-device mmcblk0 (1983872)
[4295600.206000] printk: 53 messages suppressed.
[4295600.206000] Buffer I/O error on device mmcblk0, logical block
247984
[4295600.206000] generic_make_request: Trying to access nonexistent
block-device mmcblk0 (1983872)
[4295600.206000] Buffer I/O error on device mmcblk0, logical block
247984
[4295600.206000] generic_make_request: Trying to access nonexistent
block-device mmcblk0 (1983992)
[4295600.206000] Buffer I/O error on device mmcblk0, logical block
247999

(Continue reading)

headers

Pierre Ossman | 21 Mar 2006 19:23

Re: Problems on Ubuntu Dapper, custom kernel 2.6.16

Stian B. Barmen wrote:
> I have just installed a custom kernel on the fresh 2.6.16 version. The
> problem on Dapper is the lack of mmc_block in the 2.6.15 kernel headers.
> Anyways, the 2.6.16 kernel seems to work nice, and the wbsd driver loads
> with no errors as does mmc:
> 
> [4294682.474000] mmc0: W83L51xD id 7112 at 0x248 irq 6 FIFO PnP
> [4294682.536000] mmcblk0: mmc0:a95c SD01G 992000KiB
> [4294682.536000]  mmcblk0: p1

Seems to work fine here at least.

> 
> But when I put in a SD card in the reader I get these messages:
> 
> [4295600.121000] mmcblk0: mmc0:a95d  992000KiB
> [4295600.206000] generic_make_request: Trying to access nonexistent
> block-device mmcblk0 (1983872)
> [4295600.206000] printk: 53 messages suppressed.

Please enable MMC_DEBUG so that we can see more of what's going on.

Rgds
Pierre