diff options
Diffstat (limited to 'include/uapi/drm/drm_fourcc.h')
| -rw-r--r-- | include/uapi/drm/drm_fourcc.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index bc056f2d537d..de703c6be969 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -88,6 +88,18 @@ extern "C" { * * The authoritative list of format modifier codes is found in * `include/uapi/drm/drm_fourcc.h` + * + * Open Source User Waiver + * ----------------------- + * + * Because this is the authoritative source for pixel formats and modifiers + * referenced by GL, Vulkan extensions and other standards and hence used both + * by open source and closed source driver stacks, the usual requirement for an + * upstream in-kernel or open source userspace user does not apply. + * + * To ensure, as much as feasible, compatibility across stacks and avoid + * confusion with incompatible enumerations stakeholders for all relevant driver + * stacks should approve additions. */ #define fourcc_code(a, b, c, d) ((__u32)(a) | ((__u32)(b) << 8) | \ |