Hi Linux, On Mon, Jul 07, 2014 at 04:51:56PM +0200, Linus Walleij wrote: > On Wed, Jun 18, 2014 at 5:36 PM, Sören Brinkmann <soren.brinkmann@xxxxxxxxxx> wrote: > > The first is, how is userspace supposed to find the correct offset for a > > GPIO pin. > > The sysfs interface to GPIO is *NOT* *GOOD* this is universally > agreed upon. > > This needs someone to step in and provide a replacement, my preferred > mechanism would be a /dev/gpiochip0/... hierarchy using char devices. I really like the ability to control GPIOs from shell, both interactively and scripted. I find it useful for quick hardware level debugging, and for boot time scripting (mainly in initramfs). Do you intend to preserve this capability in the future? Will I need a special utility (or Busybox applet) to do this with char device ioctl? baruch -- http://baruch.siach.name/blog/ ~. .~ Tk Open Systems =}------------------------------------------------ooO--U--Ooo------------{= - baruch@xxxxxxxxxx - tel: +972.2.679.5364, http://www.tkos.co.il - -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html