OrgApache/incubator-nuttx
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3 Commits

Author SHA1 Message Date
Xiang Xiao a37759a6a9 drivers/ioexpander: Add const to the value array of multiwritepin 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-09-28 10:09:51 +08:00
Michal Lenc f9d4a47889 pcf8575: fix compilation warnings 
Just few compile warning fixes in case CONFIG_IOEXPANDER_MULTIPIN is
selected.

Signed-off-by: Michal Lenc <michallenc@seznam.cz>
 2023-08-29 20:34:12 +08:00
Michal Lenc bf90361895 ioexpander: add support for pcf8575 expander 
This adds support for 16 bit io expander pcf8575. The driver is basically
the same as for pcf8574 however it is for 16 bits instead of 8 bits. Since
pcf8575 and pcf8574 can be both used on the same i2c bus the driver for
pcf8575 is implemented in a different file to reduce the code size
and complexity and to have less if statements in the driver.

Signed-off-by: Michal Lenc <michallenc@seznam.cz>
 2023-08-03 06:52:27 -07:00