Dear list,
I'm facing the same problem that Natale Vinto mentioned nearly a
year ago [1] on this list. I'm trying to set the Inquiry Transmit
Power Level of a Belkin USB Bluetooth adapter, unfortunately
without much of success.
It is a Bluetooth 2.1 capable device as mentioned by hciconfig:
# hciconfig hci0 version
hci0: Type: BR/EDR Bus: USB
BD Address: 00:19:0E:08:62:EC ACL MTU: 1021:8 SCO MTU: 64:1
HCI Version: 2.1 (0x4) Revision: 0x5184
LMP Version: 2.1 (0x4) Subversion: 0x420e
Manufacturer: Broadcom Corporation (15)
# hciconfig hci0 revision
hci0: Type: BR/EDR Bus: USB
BD Address: 00:19:0E:08:62:EC ACL MTU: 1021:8 SCO MTU: 64:1
Firmware 132.66 / 14
Writing the inqtpl is supported, as shown by 'hciconfig hci0
commands'.
However:
# hciconfig hci0 inqtpl
hci0: Type: BR/EDR Bus: USB
BD Address: 00:19:0E:08:62:EC ACL MTU: 1021:8 SCO MTU: 64:1
Inquiry transmit power level: 0
# hciconfig hci0 inqtpl 4
# hciconfig hci0 inqtpl
hci0: Type: BR/EDR Bus: USB
BD Address: 00:19:0E:08:62:EC ACL MTU: 1021:8 SCO
MTU: 64:1
Inquiry transmit power level: 0
All this happens with Bluez 4.70 (the one from Debian unstable)
on a (pretty much plain upstream) 2.6.32.22 kernel.
I'd like to hear from you if this is a hardware or firmware issue
of the adapter/chip (in which case I suspect it can't be fixed
and I need to find another adapter which isn't broken), or
whether it can be a Bluez issue.
[1] http://www.spinics.net/lists/linux-bluetooth/msg03785.html
Thanks very much for your time.
Have a nice day,
Roel Huybrechts
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