Hi, ALL.
Written about the PWM in section “5 Low Speed expansion connector” of “Hardware Manual Bubblegum 96”.
https://github.com/uCRDev/documentation/blob/master/ConsumerEdition/Bubblegum-96/AdditionalDocs/HardwareManual_Bubblegum96_S900_V1.1.pdf
Will can use from Debian?
If can be used, I want to know how to use.
Current situation is as follows:
root@linaro-alip:~# uname -a
Linux linaro-alip 3.10.52-linaro-bubblegum #22 SMP PREEMPT Fri Apr 15 11:21:43 CST 2016 aarch64 GNU/Linux
“pwm” is not in /sys/class directory.
root@linaro-alip:~# ls /sys/class/
adf dvb input owl_panel scsi_disk udc
backlight firmware lcd power_supply scsi_host vc
bdi gpio leds ppp sound video4linux
block graphics mdio_bus rc spi_master vtconsole
bluetooth hidraw mem regulator switch xt_idletimer
bsg hwmon misc rfkill thermal
dma i2c-adapter mmc_host rtc timed_output
drm ieee80211 net scsi_device tty
root@linaro-alip:~#
But, /sys/devices directory is a “e01b0000.pwm”.
root@linaro-alip:~# ls /sys/devices/
breakpoint e0278000.imx
cpu e0280000.vde
e00f1000.interrupt-controller e0288000.vce
e0100000.owl-audio-i2s e02b0000.usb
e0124000.uart e02c0000.usb
e0126000.uart e02e0000.de
e012a000.uart e0300000.nand
e012e000.power-domain e0308000.nand
e0130000.thermal e0330000.mmc
e0130010.thermal e0334000.mmc
e0160000.clock-controller e0338000.mmc
e01600a8.reset-controller e040cd00.owl_dwc3
e0170000.i2c e040cd0c.usb2phy
e0172000.i2c e040cf00.usb3phy
e0174000.i2c e0600000.gpu
e0176000.i2c flashlight.5
e0178000.i2c framebuffer.7
e01b0000.gpioa gpio-regulator.11
e01b0000.gpiob ion_config.4
e01b0000.gpioc isp-sensor.6
e01b0000.gpiod monitor.9
e01b0000.gpioe owl_usb_config.10
e01b0000.gpiof platform
e01b0000.interrupt-controller pmu.2
e01b0000.pinctrl psci.0
e01b0000.pwm software
e0228000.timer system
e0230000.hde timer.1
e0250000.hdmi tracepoint
e0260000.dma-controller virtual
e0270000.isp wifi_bt_power_ctl.8
root@linaro-alip:~#
I feel PWM is can use.
Thanks!
