Hi Guillaume, If you're using arch/powerpc, my understanding is that CONFIG_XILINX_GPIO needs to be enabled as well as having the right info in the dts file.
Right now I'll have to defer to others to tell you what's needed in the dts file. If you're using arch/ppc, I believe you just need CONFIG_XILINX_GPIO enabled. When the system boots up, you see a message on the console when the GPIO driver initializes. This is not exactly a tutorial. Hopefully this still helps, - John -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Guillaume Dargaud Sent: Thursday, May 15, 2008 9:35 AM To: linuxppc-dev@ozlabs.org Subject: Using GPIO Hello all, I'm trying to use the Xilinx GPIO from a user program. Since I haven't managed to compile their example (simon.c is given without a makefile), I wanted to try using /dev/gpio... So I added /dev/gpio0 c 666 0 0 10 185 - - - to device_table.txt when I generated my root filesystem with buildroot, but apparently this leads nowhere as it's not visible in /proc/devices. Is there some example or tutorial on how to use CONFIG_XILINX_GPIO ? Either as a device or as API calls... -- Guillaume Dargaud http://www.gdargaud.net/ _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev This email and any attachments are intended for the sole use of the named recipient(s) and contain(s) confidential information that may be proprietary, privileged or copyrighted under applicable law. If you are not the intended recipient, do not read, copy, or forward this email message or any attachments. Delete this email message and any attachments immediately. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
