[media] media: Media device information query
Create the following ioctl and implement it at the media device level to
query device information.
- MEDIA_IOC_DEVICE_INFO: Query media device information
The ioctl and its data structure are defined in the new kernel header
linux/media.h available to userspace applications.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index b0ada6f..31eb174 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -233,6 +233,7 @@
header-y += major.h
header-y += map_to_7segment.h
header-y += matroxfb.h
+header-y += media.h
header-y += mempolicy.h
header-y += meye.h
header-y += mii.h
diff --git a/include/linux/media.h b/include/linux/media.h
new file mode 100644
index 0000000..64090db
--- /dev/null
+++ b/include/linux/media.h
@@ -0,0 +1,45 @@
+/*
+ * Multimedia device API
+ *
+ * Copyright (C) 2010 Nokia Corporation
+ *
+ * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ * Sakari Ailus <sakari.ailus@iki.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __LINUX_MEDIA_H
+#define __LINUX_MEDIA_H
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+#include <linux/version.h>
+
+#define MEDIA_API_VERSION KERNEL_VERSION(0, 1, 0)
+
+struct media_device_info {
+ char driver[16];
+ char model[32];
+ char serial[40];
+ char bus_info[32];
+ __u32 media_version;
+ __u32 hw_revision;
+ __u32 driver_version;
+ __u32 reserved[31];
+};
+
+#define MEDIA_IOC_DEVICE_INFO _IOWR('M', 1, struct media_device_info)
+
+#endif /* __LINUX_MEDIA_H */