iwconfig doens't work.

technolog · 2013-05-13 19:53:07

On the bottom of this page, it is written you can change the power saving timeout: http://wireless.kernel.org/en/users/Doc … power-save

[rok@rok-laptop ~]$ sudo iwconfig wlan1 power 200m
Error for wireless request "Set Power Management" (8B2C) :
    SET failed on device wlan1 ; Invalid argument.

List of equipment:

wlan1: DWL-G122 d-link USB dongle
wlan0: AR9285 Wireless Network Adapter

Neither of those adapters work. Can anyone please help?

WonderWoofy · 2013-05-14 04:18:43

Does your wireless device support this feature? Not every feature that is offered as a setting by iwconfig will work for every device. I have a crappy realtek card that I no longer use, and it did not support power_save by iwconfig. But it was able to be set when the module was loaded through a kernel parameter.

I see you are trying to use wlan1, which you mention is a usb device. You should know a couple things. First, if you use the wlan* kernel names, it won't always be that the USB is 1 and the internal is 0 (unless you plug the USB in after the machine is booted). Second, the model of the device really doesn't do much good. I guess I could google it, but the model of a wireless device is really just branding. It is the underlying chipset that is the real necessary information. So use lsusb and see if you can figure it out.

technolog · 2013-05-14 07:22:25

I have actually bought the USB dongle, hoping it would support it. Is there a list of devices/chipsets that support timeout feature? Is it possible that it is the bug in the driver or wireless_tools?

I think that device model implies the chipset. It is just ridiculous to think they put the chipsets in at random.

Thanks for the remark about numbers, but in my case, they don't really matter, I just want for one of the devices to support it - so I can do my college work.

Last edited by technolog (2013-05-14 07:23:03)

WonderWoofy · 2013-05-14 15:01:37

Okay... well, a good way to find out if the device model implies chipset (which it doesn't) is by checking with a tool like lsusb. The chipset refers to the actual hardware that is inside the device itself. I'll give you a hint: D-Link doesn't make such hardware themselves. The usualy players are Atheros, Broadcom, Ralink, and Intel. Though Intel chipsets are typically only in Intel products.

Strike0 · 2013-05-14 18:27:31

Is there a specific reason you specify the microseconds? Better to let netlink handle that, if there is not.

Can you set power save on in general on it (without the time argument; see iw command in your first link)?

Arch Linux

#1 2013-05-13 19:53:07

iwconfig doens't work.

#2 2013-05-14 04:18:43

Re: iwconfig doens't work.

#3 2013-05-14 07:22:25

Re: iwconfig doens't work.

#4 2013-05-14 15:01:37

Re: iwconfig doens't work.

#5 2013-05-14 18:27:31

Re: iwconfig doens't work.

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