2 # Resolver/Synchro drivers
4 comment "Resolver to digital converters"
7 tristate "Analog Devices ad2s90 driver"
10 Say yes here to build support for Analog Devices spi resolver
11 to digital converters, ad2s90, provides direct access via sysfs.
14 tristate "Analog Devices ad2s120x driver"
17 Say yes here to build support for Analog Devices spi resolver
18 to digital converters, ad2s1200 and ad2s1205, provides direct access
22 tristate "Analog Devices ad2s1210 driver"
25 Say yes here to build support for Analog Devices spi resolver
26 to digital converters, ad2s1210, provides direct access via sysfs.
29 prompt "Resolution Control"
31 default AD2S1210_GPIO_NONE
33 In normal mode, the resolution of the digital output is selected
34 using the RES0 and RES1 input pins. In configuration mode, the
35 resolution is selected by setting the RES0 and RES1 bits in the
36 control regsiter. When switching between normal mode and configuration
37 mode, there are some schemes to keep them matchs.
39 config AD2S1210_GPIO_INPUT
40 bool "read resolution from gpio pins"
42 GPIO pins are sampling RES0 and RES1 pins, read the resolution
43 settings from the GPIO pins.
45 config AD2S1210_GPIO_OUTPUT
46 bool "set gpio pins to set resolution"
48 RES0 and RES1 pins are controlled by GPIOs, setting GPIO pins to
51 config AD2S1210_GPIO_NONE
52 bool "take the responsibility by user"