From 78de7fd3d8d1b194d699f0aaa19069bd7fa5f301 Mon Sep 17 00:00:00 2001
From: Jens Owen <jens@tungstengraphics.com>
Date: Tue, 9 Apr 2002 17:57:01 +0000
Subject: [PATCH] Added version checking for drm library, included new entry
 point: drmGetLibVersion This is now used by r128, radeon, glint, i810, i830
 and mga drivers

---
 libdrm/xf86drm.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/libdrm/xf86drm.c b/libdrm/xf86drm.c
index b98c0378..9cc83a27 100644
--- a/libdrm/xf86drm.c
+++ b/libdrm/xf86drm.c
@@ -434,7 +434,7 @@ static void drmCopyVersion(drmVersionPtr d, const drm_version_t *s)
     d->desc               = drmStrdup(s->desc);
 }
 
-/* drmVersion obtains the version information via an ioctl.  Similar
+/* drmGet Version obtains the driver version information via an ioctl.  Similar
  * information is available via /proc/dri. */
 
 drmVersionPtr drmGetVersion(int fd)
@@ -483,6 +483,26 @@ drmVersionPtr drmGetVersion(int fd)
     return retval;
 }
 
+/* drmGetLibVersion set version information for the drm user space library.
+ * this version number is driver indepedent */
+
+drmVersionPtr drmGetLibVersion(int fd)
+{
+    drm_version_t *version = drmMalloc(sizeof(*version));
+
+    /* Version history:
+     *   revision 1.0.x = original DRM interface with no drmGetLibVersion
+     *                    entry point and many drm<Device> extensions
+     *   revision 1.1.x = added drmCommand entry points for device extensions
+     *                    added drmGetLibVersion to identify libdrm.a version
+     */
+    version->version_major      = 1;
+    version->version_minor      = 1;
+    version->version_patchlevel = 0;
+
+    return (drmVersionPtr)version;
+}
+
 void drmFreeBusid(const char *busid)
 {
     drmFree((void *)busid);