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

[speculatrix]

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

Oh, and thanks for that.


BTW, it is very important that all Zaurus owners take good care of any downloads they make, since it is quite common for important resources to be abandoned and sometimes they are lost forever.

Even if you don't think you'll want it, try and get the source packages too. Disk space these days is practically free (as are blank DVDs for archives!).

For example, I found an interesting volume control applet for original sharp written by a third party, I managed to get the binary, but the guy had lost the source code in a disk crash, hadn't backed up, and also sold his Zaurus so had no way to recreate his work nor any particular interest in doing so (he wasn't unfriendly/unhelpful, just too busy)!