[km9]

Attached file is a new version of SD / SDHC card slot driver. The aim of the release is to improve both stability and performance however there might be problems due to handling of interrupts. Changes are:

- retry on I/O timeout (prev. releases became irressponsible)
- detect card removals during operation
- lower CPU utilization (the driver is now interrupt-driven)

To install the driver onto a DellEFI-based system:

1) unzip the driver
2) sudo cp -r IOSDHCIBlockDevice.kext /Extra/Extensions1/
3) sudo kextcache -a i386 -m /Extra/Extensions.mkext /Extra/Extensions1
4) reboot

If you find any problem and willing to help improvement, PLEASE INCLUDE ALL FOLLOWING INFORMATION.

- vendor name and product name of the SD card
- output of "sudo dmesg" when the error occurred

[bmaltais]

km9,

I appreciate your hard work! Without you many things like sleep, sound after sleep and SDHC drivers would be missing from this platform.

Sometimes I wonder if people realize all the work you have contributed to this project.

Any way,

Thank you!

[gregj66]

Originally Posted by bmaltais

km9,

I appreciate your hard work! Without you many things like sleep, sound after sleep and SDHC drivers would be missing from this platform.

Sometimes I wonder if people realize all the work you have contributed to this project.

Until bmaltais' post, I didn't know how much km9 had contributed to this project.

Thank you km9!

[bmaltais]

I have tested your SDHC drivers and all look good on my side. I noticed a stream of commands being displayed at boot time for SDHC... are those to remain for ever or will they eventually be removed? Wondering if this is a side effect of debug code in the driver.

[guyincognito]

Just installed and rebooted with no problems no far. I'm using a Transcend 16GB SDHC Class 6 card. Thanks for all your contributions to this project.

[Eligos]

km9, your dedication to our cause is not only indespensible but very much appreciated.

I SALUTE YOU! :ugeek:

[Snowshiro]

Originally Posted by bmaltais

I have tested your SDHC drivers and all look good on my side. I noticed a stream of commands being displayed at boot time for SDHC... are those to remain for ever or will they eventually be removed? Wondering if this is a side effect of debug code in the driver.

No additional commands appeared on my machine. Using the same card as the earlier poster (Transcend Class 6 16 Gig).

Rebooted without problems. Everything seems to be running smoothly. Thanks km9. We owe you and bmaltais a huge debt of gratitude.

[bmaltais]

Originally Posted by Snowshiro

No additional commands appeared on my machine. Using the same card as the earlier poster (Transcend Class 6 16 Gig).

Rebooted without problems. Everything seems to be running smoothly. Thanks km9. We owe you and bmaltais a huge debt of gratitude.

And everyone else that brought this, like unaclocker, type11, etc, etc

[GreyPaint]

Sorry, I must be stupid....

Where do you unzip the file to? I just unzipped it into my downloads folder and got this;

cp: IOSDHCIBlockDevice.kext: No such file or directory

[guyincognito]

Originally Posted by GreyPaint

Sorry, I must be stupid....

Where do you unzip the file to? I just unzipped it into my downloads folder and got this;

cp: IOSDHCIBlockDevice.kext: No such file or directory

Did you cd into ~/Downloads before running the cp command?