Hi, Beaglebone black.
Is there a way to find the mapping /association between let's say gpio7 <-> P9_42 <-> pwnchip0/pwm0 (aka: finding that 0 has to go in /pwmchip0/export) just from the sys/ filesystem by looking a the symlinks and devices, without consulting the manual ? I even used the config-pin and I cannot find a way to associate it with the chip# root@s2w10l:/sys/devices/platform/ocp/48300000.epwmss/48300100.ecap/pwm/ pwmchip0# config-pin -q P9.42 P9_42 Mode: pwm root@s2w10l:/sys/devices/platform/ocp/48300000.epwmss/48300100.ecap/pwm/ pwmchip0# config-pin -l P9.42 default gpio gpio_pu gpio_pd gpio_input spi_cs spi_sclk uart pwm pru_ecap root@s2w10l:/sys/devices/platform/ocp/48300000.epwmss/48300100.ecap/pwm/ pwmchip0# config-pin -i P9.42 Pin name: P9_42 Function if no cape loaded: gpio Function if cape loaded: default gpio gpio_pu gpio_pd gpio_input spi_cs spi_sclk uart pwm pru_ecap Function information: gpio0_7 default gpio0_7 gpio0_7 gpio0_7 gpio0_7 spi1_cs1 spi1_sclk uart3_txd ecap0_in_pwm0_out pru_ecap Kernel GPIO id: 7 PRU GPIO id: 39 Thank you -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/fa16bf91-9d38-47ca-a58f-aa0be03cb2c8%40googlegroups.com.
