xf86drm: introduce drmGetDeviceNameFromFd2

The original version considered only card devices, while this will pick
the device/node name regardless - card, control, renderD, other...

Current implementation is "linux" specific, in such that it relies on
sysfs/uevent file. At the same time this gives us the flexibility to
support any nodes even future ones, as long as they're within DRM_MAJOR.

Shamelessly copied from mesa, latter by: Gary Wong <gtw@gnu.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/xf86drm.h b/xf86drm.h
index 481d882a..4da6bd3c 100644
--- a/xf86drm.h
+++ b/xf86drm.h
@@ -753,6 +753,11 @@ typedef struct _drmEventContext {
 extern int drmHandleEvent(int fd, drmEventContextPtr evctx);
 
 extern char *drmGetDeviceNameFromFd(int fd);
+
+/* Improved version of drmGetDeviceNameFromFd which attributes for any type of
+ * device/node - card, control or renderD.
+ */
+extern char *drmGetDeviceNameFromFd2(int fd);
 extern int drmGetNodeTypeFromFd(int fd);
 
 extern int drmPrimeHandleToFD(int fd, uint32_t handle, uint32_t flags, int *prime_fd);