[media] v4l: add device type for Software Defined Radio

Add new V4L device type VFL_TYPE_SDR for Software Defined Radio.
It is registered as /dev/swradio0 (/dev/sdr0 was already reserved).

Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index 0a30dbf3d05c8c1c26086df64ac8382118643d84..9764ca04f8e21626195f7a5b0e242c276445e7ed 100644 (file)
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -758,6 +758,8 @@ static void determine_valid_ioctls(struct video_device *vdev)
  *     %VFL_TYPE_RADIO - A radio card
  *
  *     %VFL_TYPE_SUBDEV - A subdevice
+ *
+ *     %VFL_TYPE_SDR - Software Defined Radio
  */
 int __video_register_device(struct video_device *vdev, int type, int nr,
                int warn_if_nr_in_use, struct module *owner)
@@ -797,6 +799,10 @@ int __video_register_device(struct video_device *vdev, int type, int nr,
        case VFL_TYPE_SUBDEV:
                name_base = "v4l-subdev";
                break;
+       case VFL_TYPE_SDR:
+               /* Use device name 'swradio' because 'sdr' was already taken. */
+               name_base = "swradio";
+               break;
        default:
                printk(KERN_ERR "%s called with unknown type: %d\n",
                       __func__, type);

diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index c768c9f8abc2ca0f1125cf7c1ce9135587bbefbc..eec6e460f649ed26465f47a371af16133b3e59e7 100644 (file)
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -24,7 +24,8 @@
 #define VFL_TYPE_VBI           1
 #define VFL_TYPE_RADIO         2
 #define VFL_TYPE_SUBDEV                3
-#define VFL_TYPE_MAX           4
+#define VFL_TYPE_SDR           4
+#define VFL_TYPE_MAX           5
 
 /* Is this a receiver, transmitter or mem-to-mem? */
 /* Ignored for VFL_TYPE_SUBDEV. */