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1.. include:: ../disclaimer-zh_CN.rst2 3:Original: Documentation/iio/ep93xx_adc.rst4 5:翻译:6 7 司延腾 Yanteng Si <siyanteng@loongson.cn>8 9.. _cn_iio_ep93xx_adc:10 11==================================12思睿逻辑 EP93xx 模拟数字转换器驱动13==================================14 151. 概述16=======17 18该驱动同时适用于具有5通道模拟数字转换器的低端 (EP9301, Ep9302) 设备和10通道19触摸屏/模拟数字转换器的高端设备(EP9307, EP9312, EP9315)。20 212. 通道编号22===========23 24EP9301和EP9302数据表定义了通道0..4的编号方案。虽然EP9307, EP9312和EP9315多25了3个通道（一共8个），但是编号并没有定义。所以说最后三个通道是随机编号的。26 27如果ep93xx_adc是IIO设备0，您将在以下位置找到条目28/sys/bus/iio/devices/iio:device0/:29 30 +-----------------+---------------+31 | sysfs 入口 | ball/pin 名称 |32 +=================+===============+33 | in_voltage0_raw | YM |34 +-----------------+---------------+35 | in_voltage1_raw | SXP |36 +-----------------+---------------+37 | in_voltage2_raw | SXM |38 +-----------------+---------------+39 | in_voltage3_raw | SYP |40 +-----------------+---------------+41 | in_voltage4_raw | SYM |42 +-----------------+---------------+43 | in_voltage5_raw | XP |44 +-----------------+---------------+45 | in_voltage6_raw | XM |46 +-----------------+---------------+47 | in_voltage7_raw | YP |48 +-----------------+---------------+49