On Tue, Feb 19, 2013 at 03:27:41PM +0100, Lars Poeschel wrote: > From: Lars Poeschel <poeschel@xxxxxxxxxxx> > > This adds a simple sysfs interface to the pwm subsystem. It is > heavily inspired by the gpio sysfs interface. > > /sys/class/pwm > /export ... asks the kernel to export a PWM to userspace > /unexport ... to return a PWM to the kernel > /pwmN ... for each exported PWM #N > /duty_ns ... r/w, length of duty portion > /period_ns ... r/w, length of the pwm period > /polarity ... r/w, normal(0) or inverse(1) polarity > only created if driver supports it > /run ... r/w, write 1 to start and 0 to stop the pwm > /pwmchipN ... for each pwmchip; #N is its first PWM > /base ... (r/o) same as N > /ngpio ... (r/o) number of PWM; numbered N .. MAX_PWMS You have to document this all in the Documentation/ABI/ directory for sysfs files. Please do that in your next version of this patch. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
