Bug 227770

Summary:	run(4) driver does not support modification of the txpower level using ifconfig(8)
Product:	Base System	Reporter:	Craig Martin <cm1>
Component:	wireless	Assignee:	freebsd-wireless (Nobody) <wireless>
Status:	Open ---
Severity:	Affects Some People	CC:	adrian, hselasky, net, sbruno
Priority:	---	Keywords:	feature, needs-patch, performance
Version:	12.0-RELEASE
Hardware:	Any
OS:	Any

Description Craig Martin 2018-04-25 14:05:37 UTC

The run(4) driver on a fully updated FreeBSD 11.1-RELEASE does not support modifying the txpower level using ifconfig(8) for the Ralink RT5370 USB wireless adapter (Device ID 148f:5370). E.g.:

# ifconfig wlan0 txpower 1
ifconfig: SIOCS80211: Operation not supported

Txpower can be changed on the exact same computer & usb adapter hardware running Debian Linux 8 Jessie with its "iwconfig txpower" command.

Comment 1 Craig Martin 2018-05-14 13:48:15 UTC

Issue is still occurring on a fresh install of FreeBSD 11.2-BETA1.

Comment 2 Craig Martin 2018-05-26 22:00:31 UTC

Issue is still occurring on a fresh install of FreeBSD 11.2-BETA2, 11.3-BETA3 and 12.0-CURRENT (20180521).

Comment 3 Hans Petter Selasky freebsd_committer

2018-05-27 12:25:45 UTC

Hi,

The RUN driver is located here:
/usr/src/sys/dev/usb/wlan/if_run.c

Can you make a patch? Is this feature implemented for other systems Linux/*BSD ??

--HPS

Comment 4 Craig Martin 2018-05-27 17:43:56 UTC

(In reply to Hans Petter Selasky from comment #3)
Hi Hans, I would write a patch if I knew how to, but unfortunately I don't. I'm not a programmer, simply an advanced user.

Txpower can be changed on the exact same computer & usb-wifi adapter hardware running Debian Linux 8 Jessie with its "iwconfig txpower" command. It is using the rt2800usb driver on Debian:

https://github.com/torvalds/linux/blob/master/drivers/net/wireless/ralink/rt2x00/rt2800usb.c

Comment 5 Craig Martin 2018-06-28 05:19:02 UTC

No change with FreeBSD-12.0-CURRENT-amd64-20180618-r335317

Comment 6 Sean Bruno freebsd_committer

2018-06-28 14:48:18 UTC

There is no code to do this in this driver as far as I can tell.  Someone would have to write it.  :-(

Comment 7 Craig Martin 2018-12-13 15:11:56 UTC

Should the "Component" field be set to "wireless" & the Assignee to "freebsd-wireless mailing list"?