In order to ease user thread testing with fuel gauges, enable syscalls for
the fuel gauge emulator backend API.
Signed-off-by: Aaron Massey <aaronmassey@google.com>
This adds a few line use zephyr_syscall_header() to include
headers containing syscall function prototypes.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The fuel gauge API doesn't make use of syscalls with device drivers, which
is not congruent with Zephyr's security model.
Correct the fuel gauge API to only allow access to fuel gauge device
drivers functionality via syscalls to keep with Zephyr's security model.
Signed-off-by: Aaron Massey <aaronmassey@google.com>
Add a sample sbs gauge driver with feature parity and basic tests
comparison to its sensor counter-part. Includes a simple stub test that is
extended upon.
Signed-off-by: Aaron Massey <aaronmassey@google.com>
