Implement drmGetCap() to query device/driver capabilities
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/xf86drm.h b/xf86drm.h
index 9b89f56..bf0d5df 100644
--- a/xf86drm.h
+++ b/xf86drm.h
@@ -542,6 +542,7 @@
extern int drmClose(int fd);
extern drmVersionPtr drmGetVersion(int fd);
extern drmVersionPtr drmGetLibVersion(int fd);
+extern int drmGetCap(int fd, uint64_t capability, uint64_t *value);
extern void drmFreeVersion(drmVersionPtr);
extern int drmGetMagic(int fd, drm_magic_t * magic);
extern char *drmGetBusid(int fd);