else: print(f"Found {len(devices)} I2C devices:") for device in devices: print(f"Device address: {hex(device)}") if __name__ == '__main__': scan_i2c_addresses() Observations: Expected Behavior: Detect the PCA9685 at address 0x40. Actual Behavior: "No I2C devices found!" message...
dmesg |grep i2c: nil ls -l /dev/i2c*: ls: /dev/i2c*: No such file or directory I added the platform htu21 to the configuration file, the only entry I inserted to the default configuration.yaml. As expected the error FileNotFoundError: [Errno 2] No such file or directory: '/dev...
fdtgetnode offset faill:hdmi[00.681]unable to map hdmi registers[00.684]drv_disp_init finish[00.687]boot_gui_init:start[00.689]setdisp.dev0_output_type fail.using defval=0partno erro:can't find partition Reserve0[00.714]Get Reserve0 partition number fail!no cfsofdisplay devices.[00.720]LCDop...
***报错Class 'Redis' not found in(原创) 2017-10-12 14:56 −报错:Class 'Redis' not found in 这个报错,表明phpredis 扩展没有安装好,而不是redis没有安装 有没有安装成功这个扩展,可以通过phpinfo来查看。 解决问题的方法: 安装phpredis扩展 我自己安装的是宝塔Lin... ...
ARRAY_SIZE(mini2440_i2c_devs)); platform_add_devices(mini2440_devices, ARRAY_SIZE(mini2440_devices)); if (features.count) /* the optional features */ platform_add_devices(features.optional, features.count); } 事实证明,LCD的配置是没有问题的,所以将焦点集中在背光之上。从上述代码的注释,以及在网上...
[ 0.115924] input: sunxi-keyboard as /devices/virtual/input/input0 [ 0.116854] clocksource: Switched to clocksource riscv_clocksource [ 0.130326] sun8iw20-pinctrl 2000000.pinctrl: initialized sunXi PIO driver [ 0.147684] thermal_sys: Registered thermal governor 'step_wise' ...