Re: Network drivers that don't suspend on interface down



On Wednesday 20 December 2006 20:12, Matthew Garrett wrote:
Veering off at something of a tangent - how much of this should be true
for wireless devices? Softmac seems to be unhappy about setting the
essid unless the card is up, which breaks various assumptions...

Softmac isn't the only wireless code that likes to be configured after going
up first. Configuring after the card goes up has generally been more
reliable, though that should not be necessary and is a bug IMHO.

Beyond that, I think your descriptions of up and down states make sense
for userspace. As Arjan suggests, there's then the intermediate state of
"disable as much as possible while still providing scanning and link
detection".

In order to scan, we need to have the radio on and we need to be able to send
and receive. What are you gonna turn off?

-Michael Wu

Attachment: pgp5cRCADDN2Y.pgp
Description: PGP signature



Relevant Pages

  • Re: mysterious wireless problem
    ... But I've tried another d-link and a linksys router and all behaved ... The card is a linksys wmp54g. ... source of interference such as 2.4GHz cordless phones, ... no other wireless devices in our house. ...
    (alt.internet.wireless)
  • Re: WHERE to get Wireless Help?
    ... sayd the following: ... Card is Dlink DWL 520+ ... 802.11b wireless devices. ... than B and the routers also still provide the B signals. ...
    (microsoft.public.windowsxp.help_and_support)
  • Re: WHERE to get Wireless Help?
    ... Card is Dlink DWL 520+ ... minute, like a cycle. ... 802.11b wireless devices. ... than B and the routers also still provide the B signals. ...
    (microsoft.public.windowsxp.help_and_support)
  • Re: [SLE] Wireless problems - SIOCSIFFLAGS: Timer expired
    ... The Intersil PrismGT was a hopeful contender, until the card manufacturers ... MAC-layer processing into the host driver instead of the card’s firmware. ... (This cheaper type of card is called SoftMAC and will make the prism54 ...
    (SuSE)
  • Re: Turning on WEP stops access
    ... Your wireless devices (card for computer and the access point) surely ... have some instruction documents ... ... > I just turned on the checkmark for WEP and no more access. ...
    (microsoft.public.windowsxp.hardware)