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mISDN: Added an ioctl to change the device name

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To get persistent device names with hotplug we need to rename devices
sometime.

Signed-off-by: Matthias Urlichs <matthias@urlichs.de>
Signed-off-by: Karsten Keil <kkeil@suse.de>
This commit is contained in:
Matthias Urlichs 2008-08-12 10:12:09 +02:00 committed by Karsten Keil
parent 9776ef0829
commit 8b6015f736
2 changed files with 34 additions and 12 deletions
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15
drivers/isdn/mISDN/socket.c
View file

@ -645,6 +645,21 @@ base_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
} else
err = -ENODEV;
break;
case IMSETDEVNAME:
{
struct mISDN_devrename dn;
if (copy_from_user(&dn, (void __user *)arg,
sizeof(dn))) {
err = -EFAULT;
break;
}
dev = get_mdevice(dn.id);
if (dev)
strlcpy(dev->name, dn.name, MISDN_MAX_IDLEN);
else
err = -ENODEV;
}
break;
default:
err = -EINVAL;
}

31
include/linux/mISDNif.h
View file

@ -36,8 +36,8 @@
* - should be incremented on every checkin
*/
#define MISDN_MAJOR_VERSION 1
#define MISDN_MINOR_VERSION 0
#define MISDN_RELEASE 19
#define MISDN_MINOR_VERSION 1
#define MISDN_RELEASE 20
/* primitives for information exchange
* generell format
@ -255,16 +255,6 @@ struct sockaddr_mISDN {
unsigned char tei;
};
/* timer device ioctl */
#define IMADDTIMER _IOR('I', 64, int)
#define IMDELTIMER _IOR('I', 65, int)
/* socket ioctls */
#define IMGETVERSION _IOR('I', 66, int)
#define IMGETCOUNT _IOR('I', 67, int)
#define IMGETDEVINFO _IOR('I', 68, int)
#define IMCTRLREQ _IOR('I', 69, int)
#define IMCLEAR_L2 _IOR('I', 70, int)
struct mISDNversion {
unsigned char major;
unsigned char minor;
@ -281,6 +271,23 @@ struct mISDN_devinfo {
char name[MISDN_MAX_IDLEN];
};
struct mISDN_devrename {
u_int id;
char name[MISDN_MAX_IDLEN]; /* new name */
};
/* timer device ioctl */
#define IMADDTIMER _IOR('I', 64, int)
#define IMDELTIMER _IOR('I', 65, int)
/* socket ioctls */
#define IMGETVERSION _IOR('I', 66, int)
#define IMGETCOUNT _IOR('I', 67, int)
#define IMGETDEVINFO _IOR('I', 68, int)
#define IMCTRLREQ _IOR('I', 69, int)
#define IMCLEAR_L2 _IOR('I', 70, int)
#define IMSETDEVNAME _IOR('I', 71, struct mISDN_devrename)
static inline int
test_channelmap(u_int nr, u_char *map)
{