ACCES 104-QUAD-8 driver

modulename: 104-quad-8.ko

configname: CONFIG_104_QUAD_8

Linux Kernel Configuration
└─>Device Drivers
└─>Industrial I/O support
└─>Counters
└─>ACCES 104-QUAD-8 driver
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Say yes here to build support for the ACCES 104-QUAD-8 quadrature
encoder counter/interface device family (104-QUAD-8, 104-QUAD-4).

Performing a write to a counter's IIO_CHAN_INFO_RAW sets the counter and
also clears the counter's respective error flag. Although the counters
have a 25-bit range, only the lower 24 bits may be set, either directly
or via a 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.

source code: