调试指南
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调试开关
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在内核配置界面，按如下选择，打开 PSADC 模块的 DEBUG 选项：
Linux Kernel hacking Artinchip Debug [*] PSADC driver debug
Sysfs 节点
IIO 子系统会为 ADC 设备创建一组标准的 Sysfs 节点文件，可用于读取 ADC 的数值。
cd /sys/devices/platform/soc/18210000.psadc/iio:device0
ls
dev in_voltage5_raw events in_voltage5_raw_available in_voltage0_raw in_voltage6_raw in_voltage0_raw_available in_voltage6_raw_available in_voltage10_raw in_voltage7_raw in_voltage10_raw_available in_voltage7_raw_available in_voltage11_raw in_voltage8_raw in_voltage11_raw_available in_voltage8_raw_available in_voltage1_raw in_voltage9_raw in_voltage1_raw_available in_voltage9_raw_available in_voltage2_raw in_voltage_scale in_voltage2_raw_available name in_voltage3_raw of_node in_voltage3_raw_available power in_voltage4_raw subsystem in_voltage4_raw_available uevent
cat in_voltage7_raw# 4095