19ea800c0SYanteng Si.. include:: ../disclaimer-zh_CN.rst 29ea800c0SYanteng Si 3*8137a49eSYanteng Si:Original: Documentation/iio/ep93xx_adc.rst 4*8137a49eSYanteng Si 5*8137a49eSYanteng Si:翻译: 6*8137a49eSYanteng Si 7*8137a49eSYanteng Si 司延腾 Yanteng Si <siyanteng@loongson.cn> 89ea800c0SYanteng Si 99ea800c0SYanteng Si.. _cn_iio_ep93xx_adc: 109ea800c0SYanteng Si 119ea800c0SYanteng Si================================== 129ea800c0SYanteng Si思睿逻辑 EP93xx 模拟数字转换器驱动 139ea800c0SYanteng Si================================== 149ea800c0SYanteng Si 159ea800c0SYanteng Si1. 概述 169ea800c0SYanteng Si======= 179ea800c0SYanteng Si 189ea800c0SYanteng Si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 199ea800c0SYanteng Si触摸屏/模拟数字转换器的高端设备(EP9307, EP9312, EP9315)。 209ea800c0SYanteng Si 219ea800c0SYanteng Si2. 通道编号 229ea800c0SYanteng Si=========== 239ea800c0SYanteng Si 249ea800c0SYanteng SiEP9301和EP9302数据表定义了通道0..4的编号方案。虽然EP9307, EP9312和EP9315多 259ea800c0SYanteng Si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。 269ea800c0SYanteng Si 279ea800c0SYanteng Si如果ep93xx_adc是IIO设备0，您将在以下位置找到条目 289ea800c0SYanteng Si/sys/bus/iio/devices/iio:device0/: 299ea800c0SYanteng Si 309ea800c0SYanteng Si +-----------------+---------------+ 319ea800c0SYanteng Si | sysfs 入口 | ball/pin 名称 | 329ea800c0SYanteng Si +=================+===============+ 339ea800c0SYanteng Si | in_voltage0_raw | YM | 349ea800c0SYanteng Si +-----------------+---------------+ 359ea800c0SYanteng Si | in_voltage1_raw | SXP | 369ea800c0SYanteng Si +-----------------+---------------+ 379ea800c0SYanteng Si | in_voltage2_raw | SXM | 389ea800c0SYanteng Si +-----------------+---------------+ 399ea800c0SYanteng Si | in_voltage3_raw | SYP | 409ea800c0SYanteng Si +-----------------+---------------+ 419ea800c0SYanteng Si | in_voltage4_raw | SYM | 429ea800c0SYanteng Si +-----------------+---------------+ 439ea800c0SYanteng Si | in_voltage5_raw | XP | 449ea800c0SYanteng Si +-----------------+---------------+ 459ea800c0SYanteng Si | in_voltage6_raw | XM | 469ea800c0SYanteng Si +-----------------+---------------+ 479ea800c0SYanteng Si | in_voltage7_raw | YP | 489ea800c0SYanteng Si +-----------------+---------------+ 49