Well, they move around depending on which dts you boot under. P9_14 appears at /sys/class/pwm/pwmchip*2*/pwm0 with *cat $SLOTS * 0: PF---- -1 1: PF---- -1 2: PF---- -1 3: PF---- -1 4: P-O-L- 0 Override Board Name,00A0,Override Manuf,*univ-emmc*
But if you use: *cat $SLOTS * 0: PF---- -1 1: PF---- -1 2: PF---- -1 3: PF---- -1 4: P-O-L- 0 Override Board Name,00A0,Override Manuf,*cape-universaln* it appears at /sys/class/pwm/pwmchip*4*/pwm0! Is there a way the pwm system can tell you which headers they are attached to? --Mark On Monday, February 8, 2016 at 6:42:11 PM UTC-5, RobertCNelson wrote: > > On Mon, Feb 8, 2016 at 5:36 PM, Mark A. Yoder <[email protected] > <javascript:>> wrote: > > Well.... /sys/class/pwm/pwmchip2/pwm0 worked! Thanks... > > > > So given the pin name (P9_14 for example) how do I find the pwm path? > (I'm > > trying to port bonescript to Jessie.) > > For the pwm, I think it's load order (scary).... not sure if we can > for an alias in the dt.. > > Regards, > > -- > Robert Nelson > https://rcn-ee.com/ > -- 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/d/optout.
