# SPDX-License-Identifier: GPL-2.0-only # # Counter devices # menuconfig COUNTER tristate "Counter support" help This enables counter device support through the Generic Counter interface. You only need to enable this, if you also want to enable one or more of the counter device drivers below. if COUNTER config 104_QUAD_8 tristate "ACCES 104-QUAD-8 driver" depends on PC104 && X86 && IIO select ISA_BUS_API help Say yes here to build support for the ACCES 104-QUAD-8 quadrature encoder counter/interface device family (104-QUAD-8, 104-QUAD-4). A counter's respective error flag may be cleared by performing a write operation on the respective count value attribute. Although the 104-QUAD-8 counters have a 25-bit range, only the lower 24 bits may be set, either directly or via the counter's preset attribute. Interrupts are not supported by this driver. The base port addresses for the devices may be configured via the base array module parameter. config STM32_TIMER_CNT tristate "STM32 Timer encoder counter driver" depends on MFD_STM32_TIMERS || COMPILE_TEST help Select this option to enable STM32 Timer quadrature encoder and counter driver. To compile this driver as a module, choose M here: the module will be called stm32-timer-cnt. config STM32_LPTIMER_CNT tristate "STM32 LP Timer encoder counter driver" depends on (MFD_STM32_LPTIMER || COMPILE_TEST) && IIO help Select this option to enable STM32 Low-Power Timer quadrature encoder and counter driver. To compile this driver as a module, choose M here: the module will be called stm32-lptimer-cnt. config TI_EQEP tristate "TI eQEP counter driver" depends on (SOC_AM33XX || COMPILE_TEST) select REGMAP_MMIO help Select this option to enable the Texas Instruments Enhanced Quadrature Encoder Pulse (eQEP) counter driver. To compile this driver as a module, choose M here: the module will be called ti-eqep. config FTM_QUADDEC tristate "Flex Timer Module Quadrature decoder driver" depends on HAS_IOMEM && OF help Select this option to enable the Flex Timer Quadrature decoder driver. To compile this driver as a module, choose M here: the module will be called ftm-quaddec. endif # COUNTER