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walnux/drivers/ioexpander
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Michael Spahlinger 3d5e690977 Shadow-Mode: The output- and configuration registers of the IO-Expander 
are held in the microcontrollers memory and only written to the IO-Expander.
 This reduces bus traffic and is more error-proof than the normal read-
 modify-write operation.

 Retry Mode: If enabled and an error occurs while writing to the IO-Expander the
 current transmission is automatically repeated once.
2016-06-27 08:11:54 -06:00
..
gpio.c Some small improvements to GPIO driver 2016-06-26 11:24:35 -06:00
Kconfig Shadow-Mode: The output- and configuration registers of the IO-Expander 2016-06-27 08:11:54 -06:00
Make.defs drivrs/ioexpander: Add support for a very simple GPIO drivers. It supports only pre-conrigured input and output pins and only basic input and output operations. 2016-06-24 09:43:49 -06:00
pca9555.c Shadow-Mode: The output- and configuration registers of the IO-Expander 2016-06-27 08:11:54 -06:00
pca9555.h Shadow-Mode: The output- and configuration registers of the IO-Expander 2016-06-27 08:11:54 -06:00