Is there an easy way to set some arbitrary value to a GPIO output? It seems that on Beagleboard xM the GPIOs are coming up HIGH by default, and we have a buzzer attached to GPIO_137, which is buzzing the heck out of us until the kernel is fully up, and we can switch it off by software. :)
I prepended the U-Boot boot command with "gpio clear 137", which does silence the buzzer for a couple of seconds, then the kernel begins to boot, and the buzzer comes back up (the kernel switches it to 1 on startup?). I assume there must be a way to set the value to a specific register via the DTS? This is a standard setup of Robert C. Nelson's Ubuntu demo image. Thanks! -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
