The lp503x shell command handlers receive the remaining input string as their argument. Treat empty colour arguments as the query case, document that query form in help text, and keep colour and brightness values signed until the existing range checks have run so invalid values are not silently truncated.
Guard the readline_stream() result before using it as a buffer index. readline_stream() returns EOF on end of file or failure, and writing buffer[len] before checking len can write before the stack buffer.
Use MAX_BRIGHTNESS consistently for brightness range checks.
Signed-off-by: Old-Ding <ai.neo.ae86@gmail.com>
Open the LP503X device with O_WRONLY because the driver registers the device node with write-only permissions and the example controls it through ioctl().
Signed-off-by: Nightt <87569709+nightt5879@users.noreply.github.com>
Add missing mode arguments to direct open() calls that use O_CREAT.
Also open the lp503x device with explicit read-only flags instead of O_CREAT, matching the device-node usage.
Signed-off-by: Nightt <87569709+nightt5879@users.noreply.github.com>
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
