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-rw-r--r--src/gamma-helper.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/gamma-helper.h b/src/gamma-helper.h
index 4324b84..1cd65f0 100644
--- a/src/gamma-helper.h
+++ b/src/gamma-helper.h
@@ -55,9 +55,25 @@ typedef union libgamma_gamma_ramps_any
} libgamma_gamma_ramps_any_t;
+/**
+ * A function for reading the gamma ramps from a CRTC
+ *
+ * @param this The CRTC state
+ * @param ramps The store for the gamma ramps
+ * @return Zero on success, otherwise (negative) the value of an
+ * error identifier provided by this library
+ */
typedef int libgamma_get_ramps_any_fun(libgamma_crtc_state_t* restrict this,
libgamma_gamma_ramps_any_t* restrict ramps);
+/**
+ * A function for writing the gamma ramps to a CRTC
+ *
+ * @param this The CRTC state
+ * @param ramps The gamma ramps
+ * @return Zero on success, otherwise (negative) the value of an
+ * error identifier provided by this library
+ */
typedef int libgamma_set_ramps_any_fun(libgamma_crtc_state_t* restrict this,
libgamma_gamma_ramps_any_t ramps);