# # Resolver/Synchro drivers # comment "Resolver to digital converters" config AD2S90 tristate "Analog Devices ad2s90 driver" depends on SPI help Say yes here to build support for Analog Devices spi resolver to digital converters, ad2s90, provides direct access via sysfs. config AD2S120X tristate "Analog Devices ad2s120x driver" depends on SPI help Say yes here to build support for Analog Devices spi resolver to digital converters, ad2s1200 and ad2s1205, provides direct access via sysfs. config AD2S1210 tristate "Analog Devices ad2s1210 driver" depends on SPI help Say yes here to build support for Analog Devices spi resolver to digital converters, ad2s1210, provides direct access via sysfs. choice prompt "Resolution Control" depends on AD2S1210 default AD2S1210_GPIO_NONE help In normal mode, the resolution of the digital output is selected using the RES0 and RES1 input pins. In configuration mode, the resolution is selected by setting the RES0 and RES1 bits in the control regsiter. When switching between normal mode and configuration mode, there are some schemes to keep them matchs. config AD2S1210_GPIO_INPUT bool "read resolution from gpio pins" help GPIO pins are sampling RES0 and RES1 pins, read the resolution settings from the GPIO pins. config AD2S1210_GPIO_OUTPUT bool "set gpio pins to set resolution" help RES0 and RES1 pins are controlled by GPIOs, setting GPIO pins to set the resolution. config AD2S1210_GPIO_NONE bool "take the responsibility by user" endchoice