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

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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>
This commit is contained in:
Antti Palosaari 2013-12-11 20:03:07 -03:00 • committed by Mauro Carvalho Chehab
parent 5121288d23
commit d42626bda4
2 changed files with 8 additions and 1 deletions
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6
drivers/media/v4l2-core/v4l2-dev.c
View file

@ -758,6 +758,8 @@ static void determine_valid_ioctls(struct video_device *vdev)
* %VFL_TYPE_RADIO - A radio card * %VFL_TYPE_RADIO - A radio card
* *
* %VFL_TYPE_SUBDEV - A subdevice * %VFL_TYPE_SUBDEV - A subdevice
*
* %VFL_TYPE_SDR - Software Defined Radio
*/ */
int __video_register_device(struct video_device *vdev, int type, int nr, int __video_register_device(struct video_device *vdev, int type, int nr,
int warn_if_nr_in_use, struct module *owner) 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: case VFL_TYPE_SUBDEV:
name_base = "v4l-subdev"; name_base = "v4l-subdev";
break; break;
case VFL_TYPE_SDR:
/* Use device name 'swradio' because 'sdr' was already taken. */
name_base = "swradio";
break;
default: default:
printk(KERN_ERR "%s called with unknown type: %d\n", printk(KERN_ERR "%s called with unknown type: %d\n",
__func__, type); __func__, type);

3
include/media/v4l2-dev.h
View file

@ -24,7 +24,8 @@
#define VFL_TYPE_VBI 1 #define VFL_TYPE_VBI 1
#define VFL_TYPE_RADIO 2 #define VFL_TYPE_RADIO 2
#define VFL_TYPE_SUBDEV 3 #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? */ /* Is this a receiver, transmitter or mem-to-mem? */
/* Ignored for VFL_TYPE_SUBDEV. */ /* Ignored for VFL_TYPE_SUBDEV. */