Dear All, I am using Beaglebone green running linux 4.12.0-dirty. I am trying to get HX117 adc work. I am facing some issues.
I am getting this error hx711-gpio: probe of weight@0 failed with error -22 ............... [ 1.926416] hx711-gpio weight@0: GPIO lookup for consumer sck [ 1.932575] hx711-gpio weight@0: using device tree for GPIO lookup [ 1.939397] of_get_named_gpiod_flags: parsed 'sck-gpios' property of node '/weight@0[0]' - status (0) [ 1.949245] hx711-gpio weight@0: GPIO lookup for consumer dout [ 1.955341] hx711-gpio weight@0: using device tree for GPIO lookup [ 1.961894] of_get_named_gpiod_flags: parsed 'dout-gpios' property of node '/weight@0[0]' - status (0) [ 1.971735] hx711-gpio weight@0: weight@0 supply avdd not found, using dummy regulator [ 1.985324] mmcblk0: mmc0:0001 SD 7.32 GiB [ 1.994758] mmcblk0: p1 p2 [ 2.002936] hx711-gpio: probe of weight@0 failed with error -22 ................ My device tree: /* * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ /dts-v1/; /plugin/; #include "am33xx.dtsi" #include "am335x-bone-common.dtsi" #include "am335x-bonegreen-common.dtsi" / { model = "TI AM335x BeagleBone Green"; compatible = "ti,am335x-bone-green", "ti,am335x-bone-black", "ti,am335x-bone", "ti,am33xx"; weight@0 { pinctrl-names = "default"; pinctrl-0 = <&weight_pins>; compatible = "avia,hx711"; sck-gpios = <&gpio1 16 GPIO_ACTIVE_HIGH>; dout-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; avdd-suppy = <&avdd>; }; }; &am33xx_pinmux{ weight_pins: pinmux_weight_pins { pinctrl-single,pins = < 0x078 0x37 /* P9_12: gpio1_28 reset, INPUT_PULLUP | MODE7 */ 0x040 0x17 /* P9_15: gpio1_16 DC, OUTPUT_PULLUP | MODE7 */ >; }; }; &epwmss1 { status = "okay"; }; &ehrpwm1 { status = "okay"; }; It would be great if someone could help me out. -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/7cc72306-9c5a-4f5e-80de-b60a8c1dd099%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
