From fdb4ec86c29d85c1f68418a26e64bcc05b9c14ae Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Tue, 11 Mar 2014 14:21:27 +1000
Subject: [PATCH] xfree86: handle xorg.conf devices with logind

Only devices from the config backend have their attributes set, devices from
the xorg.conf only have Option "Device". That option is also set by the
config backend, so use it.

And since the config backend sets our major/minor but xorg.conf devices don't
have that set, make sure we try to stat it first where needed.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
---
 hw/xfree86/common/xf86Xinput.c | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/hw/xfree86/common/xf86Xinput.c b/hw/xfree86/common/xf86Xinput.c
index 7c3e479e5..36b92a9f7 100644
--- a/hw/xfree86/common/xf86Xinput.c
+++ b/hw/xfree86/common/xf86Xinput.c
@@ -81,6 +81,7 @@
 
 #include <stdarg.h>
 #include <stdint.h>             /* for int64_t */
+#include <sys/stat.h>
 #include <unistd.h>
 
 #include "mi.h"
@@ -804,6 +805,18 @@ xf86InputDevicePostInit(DeviceIntPtr dev)
     return Success;
 }
 
+static void
+xf86stat(const char *path, int *maj, int *min)
+{
+    struct stat st;
+
+    if (stat(path, &st) == -1)
+        return;
+
+    *maj = major(st.st_rdev);
+    *min = minor(st.st_rdev);
+}
+
 /**
  * Create a new input device, activate and enable it.
  *
@@ -828,6 +841,7 @@ xf86NewInputDevice(InputInfoPtr pInfo, DeviceIntPtr *pdev, BOOL enable)
     DeviceIntPtr dev = NULL;
     Bool paused;
     int rval;
+    const char *path;
 
     /* Memory leak for every attached device if we don't
      * test if the module is already loaded first */
@@ -841,9 +855,13 @@ xf86NewInputDevice(InputInfoPtr pInfo, DeviceIntPtr *pdev, BOOL enable)
         goto unwind;
     }
 
-    if (drv->capabilities & XI86_DRV_CAP_SERVER_FD) {
+    path = xf86CheckStrOption(pInfo->options, "Device", NULL);
+    if (path && pInfo->major == 0 && pInfo->minor == 0)
+        xf86stat(path, &pInfo->major, &pInfo->minor);
+
+    if (path && (drv->capabilities & XI86_DRV_CAP_SERVER_FD)){
         int fd = systemd_logind_take_fd(pInfo->major, pInfo->minor,
-                                        pInfo->attrs->device, &paused);
+                                        path, &paused);
         if (fd != -1) {
             if (paused) {
                 /* Put on new_input_devices list for delayed probe */