Commit Graph

4 Commits

Author SHA1 Message Date
Steven Slupsky
c54f7ec1fc drivers: hwinfo: fix endianness for sam0 and nrf
HWINFO drivers should be responsible for ensuring that
the data structure is a sequence of bytes. That is not
what the current sam0 and nordic drivers do. The drivers
read the data as u32_t and then memcpy the data to a
buffer. This ensures the data has the endianness of the
underlying MCU, which in this case is Cortex M0 which
is little endian.

This commit fixes the endianness so the data can be
interpreted as a "left to right sequence of bytes".

This commit updates the API doc to provide clarification
of the data structure.
Add to 2.3 release notes.

Fixes #23444, #24103

Signed-off-by: Steven Slupsky <sslupsky@gmail.com>
2020-04-09 19:30:32 +02:00
Carles Cufi
46f108519d doc: reference: Add hwinfo API
Add the hwinfo API to the reference documentation.

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2020-03-18 11:47:24 +01:00
Alexander Wachter
75724bf299 doc: hwinfo: Clarify return values.
Change the doxygen doc from "negative on error" to -ENOSUP and
negative value on driver specific errors.

Signed-off-by: Alexander Wachter <alexander@wachter.cloud>
2020-02-27 21:14:54 +01:00
Anas Nashif
f901e26de9 cleanup: include/: move hwinfo.h to drivers/hwinfo.h
move hwinfo.h to drivers/hwinfo.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00