From: Tvrtko Ursulin <[email protected]> Add __igt_params_get for simple reading of modparams.
v2: * Fix kerneldoc. (Matt) Signed-off-by: Tvrtko Ursulin <[email protected]> Reviewed-by: Matthew Auld <[email protected]> --- lib/igt_params.c | 26 ++++++++++++++++++++++++++ lib/igt_params.h | 2 ++ 2 files changed, 28 insertions(+) diff --git a/lib/igt_params.c b/lib/igt_params.c index c06416988baa..3dad317a56b2 100644 --- a/lib/igt_params.c +++ b/lib/igt_params.c @@ -156,6 +156,32 @@ int igt_params_open(int device) return params; } +/** + * __igt_params_get: + * @device: fd of the device + * @parameter: the name of the parameter to get + * + * This reads the value of the modparam. + * + * Returns: + * A nul-terminated string, must be freed by caller after use, or NULL + * on failure. + */ +char *__igt_params_get(int device, const char *parameter) +{ + char *str; + int dir; + + dir = igt_params_open(device); + if (dir < 0) + return NULL; + + str = igt_sysfs_get(dir, parameter); + close(dir); + + return str; +} + __attribute__((format(printf, 3, 0))) static bool __igt_params_set(int device, const char *parameter, const char *fmt, va_list ap, bool save) diff --git a/lib/igt_params.h b/lib/igt_params.h index bbd6f3ee6582..6494786f0696 100644 --- a/lib/igt_params.h +++ b/lib/igt_params.h @@ -28,6 +28,8 @@ int igt_params_open(int device); +char *__igt_params_get(int device, const char *parameter); + __attribute__((format(printf, 3, 4))) bool igt_params_set(int device, const char *parameter, const char *fmt, ...); -- 2.27.0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
