d47aa75669
Add PCF8574 I/O Expander driver. Some cleanup also of other expander drivers.
2016-08-01 11:10:11 -06:00
6090f69bfd
Add a GPIO lower-half driver that can be used to register a GPIO character driver for accessing pins on an I/O expander.
2016-08-01 08:43:10 -06:00
c0b83cb4b4
First (untested) cut at a TCA64XX I/O Expander driver leverages from Project Ara
2016-07-31 19:52:44 -06:00
ae19ca45e0
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
8ab93fdf98
Change name of drivers/discrete back to drivers/ioexpander
2015-12-15 08:40:34 -06:00
cbb78071b3
Rename ioexpander/ directories to discrete/
2015-11-01 13:14:48 -06:00
b947002d6a
This commit adds:
...
-headers in nuttx/ioexpander to define the "generic" ioexpander framework
-files in drivers/ioexpander for the implementation of the NXP PCA9555 framework
-bindings in drivers/Kconfig and drivers/Makefile
From Sebastien Lorquet
2015-07-09 08:27:07 -06:00
Gregory Nutt