myUltraschall{
compatible = “100askUltraschall”;
// gpios = <&gpio4 19 GPIO_ACTIVE_HIGH
// &gpio4 20 GPIO_ACTIVE_HIGH>;
pinctrl-names = “default”;
//pinctrl-0 = < &pinctrl_leds>;
pinctrl-0 = <&Ultraschallgpiotrig &Ultraschallgpioecho>;
status = “okay”;
};
Ultraschallgpiotrig: Ultraschallgpiotrig { /*!< Function assigned for the core: Cortex-A7[ca7] */
fsl,pins = <
MX6UL_PAD_CSI_VSYNC__GPIO4_IO19 0x000010B0
>;
};
Ultraschallgpioecho: Ultraschallgpioecho { /*!< Function assigned for the core: Cortex-A7[ca7] */
fsl,pins = <
MX6UL_PAD_CSI_HSYNC__GPIO4_IO20 0x000010B0
>;
};
[ 247.230896] imx6ul-pinctrl 2290000.iomuxc-snvs: failed to get pin(119) name
[ 247.239229] pinconfig core: failed to register map default (1): no group/pin given
[ 247.247511] 100ask_ultraschall: probe of myUltraschall failed with error -22
为什么找不到引脚119？就是imx6ull扩展板的gpio0和gpio1,对应gpio4的19和20.我用工具配置的，是上拉对吧
而且[root@imx6ull:/mnt]# cat /sys/kernel/debug/pinctrl/2290000.iomuxc/pinmux-pins
cat: can’t open ‘/sys/kernel/debug/pinctrl/2290000.iomuxc/pinmux-pins’: No such file or directory
[root@imx6ull:/mnt]# cat /proc/device-tree/myUltraschall/compatible
100askUltraschall[root@imx6ull:/mnt]# cat /proc/device-tree/myUltraschall/pinctrl-0
89
这个也有输出，但不知道为什么就是找不到119引脚，还请老师解答。