Hi,
I am running Angstrom with kernel 2.6.39 and on a Beagleboard C4. I can see spidev3.0 spidev3.1, and spidev4.0 in /dev. I downloaded spidev_test.c from [1] and compiled it natively. But when i run it, there is no change on the associated pins of the expansion port, no matter which device i specify (eg: ./spidev_test -D /dev/spidev3.0). (spidev_test also always returns only 00 when it runs).
For background, I built Angstrom and the kernel using open embedded. I built virtual/kernel, base-image, and then console-image and native-sdk-image as a test (and the console/sdk image runs fine). I then made changes to arch/arm/mach-omap2/board-omap3beagle.c based on [2] and recompiled using the following commands:
$ bitbake -f virtual/kernel -c compile
$ bitbake -f virtual/kernel -c deploy
Compilation completed with no errors, so i copied all the files (MLO, u-boot.bin, uImage.bin, and rootfs with modules) to my SD card. But before i could get spidev to show up, i had to replace /boot/uImage-2.6.39 in the root file system with uImage.bin in the boot partion if the SD card. After this, all the spidev devices showed up in /dev, but i have the problem described above when running the test code.
Also, i erased my NAND a bit ago, so all the files are loaded from the SD card (MLO, u-boot.bin, uImage.bin, and rootfs with modules).
Any help, information, suggestions, etc, would be most greatly appreciated.
thanks,
sascha
[1] http://alinux.tv/Kernel-2.6.34/spi/spidev_test.c
[2] see attached file diffs.txt
diffs.txt (1.85 KB)
