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The Linux kernel configuration item CONFIG_104_QUAD_8
has multiple definitions:
drivers/counter/Kconfig
The configuration item CONFIG_104_QUAD_8:
(( CONFIG_PC104 && CONFIG_X86 ) || CONFIG_COMPILE_TEST ) && ( CONFIG_HAS_IOPORT_MAP )
104-quad-8
, 104-quad-8
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. The 104-QUAD-8 counters may be set either directly or via the counter's preset attribute.
The base port addresses for the devices may be configured via the base array module parameter. The interrupt line numbers for the devices may be configured via the irq array module parameter.
drivers/iio/counter/Kconfig
The configuration item CONFIG_104_QUAD_8:
CONFIG_PC104 && CONFIG_X86
104-quad-8
, 104-quad-8
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.
Raw data from LKDDb:
lkddb module 104-quad-8 CONFIG_104_QUAD_8 : drivers/counter/Kconfig : "ACCES 104-QUAD-8 driver" # in 5.2–5.19, 6.0–6.12, 6.13-rc+HEAD
lkddb module 104-quad-8 CONFIG_104_QUAD_8 : drivers/iio/counter/Kconfig : "ACCES 104-QUAD-8 driver" # in 4.10–4.20, 5.0–5.1
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Automatically generated (in year 2024). See also LKDDb sources on GitLab