Messages

1

General Discussion / Shut Off Wifi Connection While Browsing

« on: October 28, 2007, 08:25:56 pm »

I would like to get this idea out there before I forget it.  I realize that when I am browsing the web, I spend a lot of my time simply reading the current web page.  I wonder if it is feasible to reprogram Firefox or some other web browser to shut off power to the wireless networking card after loading a web page until I click on a web link, click on the home page button, select a bookmark, or enter a new URL in the address bar to take me to a different page.  That way, you should be able to browse the web a lot longer than you would be able to do by having the wireless network card on during the whole web browsing session.  Does the wireless card have to be constantly on to maintain the wireless connection?

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General Discussion / I Mounted A 2 Gig Sd Card!

« on: October 27, 2007, 03:29:43 pm »

You can make the root folder writable by using:

su
mount / -o rw,remount

After you are done copying the new module into its proper location, you can make the root folder read-only again by typing:

mount / -o ro,remount

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General Discussion / Found The Forums Again

« on: October 12, 2007, 01:04:06 am »

For the past several days, I was wondering if someone had pulled the plug on the OESF forums.  I finally found this place again via a Google search.  If

https://www.oesf.org/forum

without the "s" at the end is going to be the new permanent address for the OESF forum, then the link to the forum from

http://www.zaurususergroup.com/

should be fixed to point to the new web address.

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General Discussion / Modified Voicerec

« on: July 18, 2007, 09:08:36 pm »

Yes.  Your version of voicerec also works on the internal flash and SD cards.

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General Discussion / Modified Voicerec

« on: July 18, 2007, 08:28:10 pm »

I am now wondering if there are additional checks for available disk space as the voicerec program runs, beyond the initial check that the unmodified voicerec program performs.

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General Discussion / Modified Voicerec

« on: July 18, 2007, 08:26:03 pm »

I think that the error message might have been from another program, the tkVoiceRec application, which currently automatically executes when I insert my microphone into the computer.  The problem that I have with the modified voicerec program is that it records for a second to the 4GB CF card and then stops.

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General Discussion / Modified Voicerec

« on: July 18, 2007, 08:04:40 pm »

I tried the modified voicerec program, and it no longer gives me a false message that my 4GB CF card is out of space, but I get an error message:

QLibrary open failed!: /home/QtPalmtop/lib/libqsfepj.so, libkke.so.1: cannot load shared object file: No such file or directory

libkke seems to be related to Japanese language input, based on a Google search.  My Zaurus SL-C760 was converted to English by the previous owner.

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General Discussion / I Mounted A 2 Gig Sd Card!

« on: July 17, 2007, 10:08:34 pm »

Here's my voicerec program from the Zaurus SL-C760.  The original location is

/usr/QtPalmtop.rom/bin/voicerec

There is a symbolic link to voicerec from:

/home/QtPalmtop/bin/voicerec

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General Discussion / I Mounted A 2 Gig Sd Card!

« on: July 17, 2007, 08:15:57 pm »

I get an error message when I run voicerec-pel and try to access the Options menu:

voicrec-pel: error while loading shared libraries: ./voicerec-pel: undefined symbol: getNumOfStorageID__15SlStroageIn

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General Discussion / I Mounted A 2 Gig Sd Card!

« on: July 17, 2007, 07:12:26 pm »

The Sandisk Ultra II SD card interfaces directly to the computer with its built-in USB connector without the need for a card reader, which is very convenient if you are not at home and need to transfer information between the SD card and a desktop computer which has a USB port.  Windows XP seems to ignore the write protect tab on the Sandisk Ultra II SD card and will happily write data to the card.

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General Discussion / I Mounted A 2 Gig Sd Card!

« on: July 17, 2007, 01:47:02 am »

I copied a couple of big files, a 419MB ATI SDK and a 398MB Beyond the Red Line BattleStar Galactica free game demo, onto the Sandisk Ultra II SD card.  One thing that I accidentally learned by doing this is that Windows XP ignores the SD card's write protect tab.  That pushed the SD card contents over 1GB in size.  On the Zaurus SL-C760, I copied the files from the SD card to the CF card and am currently starting to compute their MD5SUMs.  That will take a while.  I would be more concerned about SD cards which are larger than 2GB in size in case the Sharp code uses signed 32 bit integer representations which would cause integer representations that are larger than 2,147,483,647 (2^31 - 1) to be interpreted as negative numbers.

I know that the Sharp voice recorder will falsely think that a mostly empty 4GB CF card is out of disk space, probably due to the use of signed 32 bit integer representations for checking the available space.

What technique did you use to disassemble and reassemble the object file?  I might have to do that with the Sharp voice recorder to disable its disk space check.

The MD5SUMs of the corresponding files are identical.  The computation finished as I was finishing this message.

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General Discussion / I Mounted A 2 Gig Sd Card!

« on: July 16, 2007, 09:18:00 pm »

Yes to both so far.  I was listening to MP3 music just now from my 2GB SD card.

df reports about 1.98GB total on the card, 380MB used, 1.6GB available:

/dev/mmcda1 1983360 379680 1603680 19% /usr/mnt.rom/card

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General Discussion / I Mounted A 2 Gig Sd Card!

« on: July 16, 2007, 08:35:38 pm »

I just did another test on my Zaurus SL-C760.

time nice -9 cp /mnt/card/rfc.cramfs /mnt/cf

real 1m6.517s
user 0m3.030s
sys 0m31.410s

My compact flash card is a 4GB Sandisk regular CF card.  That's a real-time data transfer rate of about 928KB/s.

The md5sum of the original file and the destination file matches, so they are probably identical.  

Thanks for the modified driver.  Nice work.

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General Discussion / I Mounted A 2 Gig Sd Card!

« on: July 16, 2007, 08:22:26 pm »

I just received my 2GB Sandisk Ultra II SD card today.  Amazon.com had the best price compared to eBay at the time that I made my order.  This little SD card flips open to provide its own USB port connector.  Preliminary testing seems to indicate that the card works with the modified driver.  I have replaced the link to the original Sharp driver with the new driver renamed as the Sharp driver.  Here is the result of running:

time nice -9 cp /mnt/card/rfc.cramfs /dev/null

real 0m39.138s
user 0m1.760s
sys 0m19.860s

rfc.cramfs is a compressed file of Internet RFC files.  The size of the rfc.cramfs file is 63,242,240 bytes, making the transfer rate approximately 3MB per second in system time, 1.6MB per second in real time.

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General Discussion / I Mounted A 2 Gig Sd Card!

« on: July 10, 2007, 11:51:08 pm »

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/