I Mounted A 2 Gig Sd Card!, Surprise, it's possible! :) Options

[DrWowe]

Thanks C-Guys!

I was poking around the driver for their WiFi card to investigate something. Then, I realized that they completely replace the sharp_sdmmc kernel module with their own SD/SDIO stack. So just for fun, I installed it and surprise, I can now read, write, and mount a Sandisk 2 GB SD card. So far, it's been working very reliably.

Now, the catches:

1) It works fine on my C760 (running Cacko 1.12). But, when I tried to install the modules on my 6000, I got kernel oopses. So, it may be very sensitive to the model/kernel that is running. This is not that surprising since C760 is one of the few models listed as supported on their website.

2) vfat filesystems are fine. I had some problems with ext2. I fixed it by reformatting my card with "mke2fs -b 1024 /dev/mmcda1". This driver doesn't seem to like block sizes > 1024.


Anyway, if you want to repeat my experiment, just download and install this ipk, and reboot the Zaurus:

http://c-guys.net/cgi-bin/download/passche...n_arm.ipk&key=1

[qx773]

Both sdiomgr and sdcontrol are shell scripts that might need to be made executable with:

su
chmod 755 /usr/sbin/sdiomgr
chmod 755 /etc/sdcontrol
exit

if they are not already executable. From a casual review of the sdcontrol script, it appears to write to a log file named, "/tmp/sd", if anything goes wrong with the mounting, so you can try typing:

cat /tmp/sd

to see if any error messages are there. If the, "/tmp/sd", file is non-existent, then you can create a blank file:

touch /tmp/sd

Then suspend and resume your Zaurus and see if there are any error messages in the, "/tmp/sd", file. There should at least be some text in the file.

The C-Guys drivers do not work for me with my current MMC card. I am guessing that my 1GB ATP +Plus MMC card is incompatible. Perhaps the card has to be an SD card instead of an MMC card to work with the C-Guys driver.

I have a Zaurus SL-C760. Would someone please post the original

/lib/modules.rom/2.4.18-rmk7-pxa3-embedix/kernel/drivers/block/sharp_mmcsd_m.o

in a zip file so that I can restore mine, which I accidentally deleted, until I can try out an SD card?

I would like to purchase the C-Guys sdlink11b card to compensate them for their work, but the card seems to be out of stock. Are they still in business?

[Cyril92]

Both sdiomgr and sdcontrol are shell scripts that might need to be made executable with:

su
chmod 755 /usr/sbin/sdiomgr
chmod 755 /etc/sdcontrol
exit

if they are not already executable.  From a casual review of the sdcontrol script, it appears to write to a log file named, "/tmp/sd", if anything goes wrong with the mounting, so you can try typing:

cat /tmp/sd

to see if any error messages are there.  If the, "/tmp/sd", file is non-existent, then you can create a blank file:

touch /tmp/sd


Then suspend and resume your Zaurus and see if there are any error messages in the, "/tmp/sd", file.  There should at least be some text in the file.

The C-Guys drivers do not work for me with my current MMC card.  I am guessing that my 1GB ATP +Plus MMC card is incompatible.  Perhaps the card has to be an SD card instead of an MMC card to work with the C-Guys driver.

I have a Zaurus SL-C760.  Would someone please post the original

/lib/modules.rom/2.4.18-rmk7-pxa3-embedix/kernel/drivers/block/sharp_mmcsd_m.o

in a zip file so that I can restore mine, which I accidentally deleted, until I can try out an SD card?

I would like to purchase the C-Guys sdlink11b card to compensate them for their work, but the card seems to be out of stock.  Are they still in business?

You ll find attched my mmc_sd file from my c760 (running cacko)
Could someone help me to find the c-guys ipk in order to update my sd driver , as it seems that c-guys website is out of order.
thanx.
Cyril.

Attached File(s)

 sharp_mmcsd_m.zip ( 14.32K ) Number of downloads: 15

 

[qx773]

Thank you, Cyril92, I have regained access to my MMC card with the module that you provided.

On a related note, I asked the people at SPECTEC if they had a driver for one of their SD 802.11b cards for the Zaurus SL-C760. They did not, but they have a driver for a closely related 2.4.18 kernel for a Samsung handheld computer.

There was some discussion recently about a 2GB+ SD driver that was a disassembled and hacked version of the original Sharp driver, modified by someone in Brazil to work on the Zaurus SL-5500 models. Perhaps that driver might work with the SL-6000. The web page is:

http://cambuca.ldhs.cetuc.puc-rio.br/~miguel/zaurus/

[Cyril92]

Thank you, Cyril92, I have regained access to my MMC card with the module that you provided.

On a related note, I asked the people at SPECTEC if they had a driver for one of their SD 802.11b cards for the Zaurus SL-C760.  They did not, but they have a driver for a closely related 2.4.18 kernel for a Samsung handheld computer.

There was some discussion recently about a 2GB+ SD driver that was a disassembled and hacked version of the original Sharp driver, modified by someone in Brazil to work on the Zaurus SL-5500 models.  Perhaps that driver might work with the SL-6000.  The web page is:

http://cambuca.ldhs.cetuc.puc-rio.br/~miguel/zaurus/

Bring back to Ceasar what belongs to Caesar : you should thank speculatrix from zaurus.co.uk