Renaming hci interfaces with udev

Renaming hci interfaces with udev

[Andrej Rosano]

Hi,
I would like to change the default name of bluetooth interfaces (hci0, hci1, ...)
using udev rules.

While with wlan usb dongles it works with the line:
    KERNEL=="wlan*", NAME="foo0"
the analogous for the bt:
    KERNEL=="hci*", NAME="foo0"
doesn't work, while
    KERNEL=="hci*", RUN+="/usr/bin/touch /tmp/foo"
works.

I'm using kernel 2.6.30.1, udev 125 and bluez 4.46.

Regards,
Andrej

-- 
Andrej Rosano                                               <andrejro@gmail.com>
0x7B470744                    E5DF 7810 AD63 A215 2D0E  AF56 53C7 A2CB 7B47 0744

Re: Renaming hci interfaces with udev

[Marcel Holtmann]

Hi Andrej,

> I would like to change the default name of bluetooth interfaces (hci0, hci1, ...)
> using udev rules.
> 
> While with wlan usb dongles it works with the line:
>     KERNEL=="wlan*", NAME="foo0"
> the analogous for the bt:
>     KERNEL=="hci*", NAME="foo0"
> doesn't work, while
>     KERNEL=="hci*", RUN+="/usr/bin/touch /tmp/foo"
> works.
> 
> I'm using kernel 2.6.30.1, udev 125 and bluez 4.46.

we don't support renaming HCI devices. However feel free to send a
kernel patch to enable it.

Regards

Marcel

Re: Renaming hci interfaces with udev

[Bastien Nocera]

On Tue, 2009-07-28 at 10:37 +0200, Andrej Rosano wrote:
> Hi,
> I would like to change the default name of bluetooth interfaces (hci0, hci1, ...)
> using udev rules.

Could I ask why you want to do that?

Re: Renaming hci interfaces with udev

[Andrej Rosano]

On Tue, Jul 28, 2009 at 12:34:38PM +0100, Bastien Nocera wrote:
> On Tue, 2009-07-28 at 10:37 +0200, Andrej Rosano wrote:
> > Hi,
> > I would like to change the default name of bluetooth interfaces (hci0, hci1, ...)
> > using udev rules.
> 
> Could I ask why you want to do that?

I have more than one bt dongle connected to the box and I would like to assign always
the same bluetooth name (the one set with hciconfig hciX name ...), ex:

the one with BD_ADDR=xx:yy:zz:00:00:01  ->  foo
the one with BD_ADDR=xx:yy:zz:00:00:02  ->  bar
...


If one could use the udev persistent rules like with ethernet interfaces:

ACTION=="add", KERNEL=="hci*", ATTR{address}=="xx:yy:zz:00:00:01", NAME="hci0"
ACTION=="add", KERNEL=="hci*", ATTR{address}=="xx:yy:zz:00:00:02", NAME="hci1"
...

and then set the appropriate bluetooth name:

hciconfig hci0 name foo
hciconfig hci1 name bar
...

Currently I am using a script to do that.

Regards,
Andrej

-- 
Andrej Rosano                                               <andrejro@gmail.com>
0x7B470744                    E5DF 7810 AD63 A215 2D0E  AF56 53C7 A2CB 7B47 0744

Re: Renaming hci interfaces with udev

[Marcel Holtmann]

Hi Andrej,

> > > I would like to change the default name of bluetooth interfaces (hci0, hci1, ...)
> > > using udev rules.
> > 
> > Could I ask why you want to do that?
> 
> I have more than one bt dongle connected to the box and I would like to assign always
> the same bluetooth name (the one set with hciconfig hciX name ...), ex:
> 
> the one with BD_ADDR=xx:yy:zz:00:00:01  ->  foo
> the one with BD_ADDR=xx:yy:zz:00:00:02  ->  bar
> ...
> 
> 
> If one could use the udev persistent rules like with ethernet interfaces:
> 
> ACTION=="add", KERNEL=="hci*", ATTR{address}=="xx:yy:zz:00:00:01", NAME="hci0"
> ACTION=="add", KERNEL=="hci*", ATTR{address}=="xx:yy:zz:00:00:02", NAME="hci1"
> ...
> 
> and then set the appropriate bluetooth name:
> 
> hciconfig hci0 name foo
> hciconfig hci1 name bar
> ...
> 
> Currently I am using a script to do that.

and actually bluetoothd is doing that for you no matter what the device
name is. You just have to set the name once using the D-Bus interface.

Regards

Marcel