>Number:         25297
>Category:       port-i386
>Synopsis:       "ifconfig ath0 down" does not power down Wi/Fi card
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-i386-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Apr 24 01:20:00 UTC 2004
>Closed-Date:
>Last-Modified:
>Originator:     Alicia da Conceicao
>Release:        NetBSD-current (2.0C) i386
>Organization:
CardEngine Inc.
>Environment:
NetBSD luna.engine.ca 2.0C NetBSD 2.0C (LUNA) #0: Tue Apr 20 04:51:03 EDT 2004 rt@luna.engine.ca:/usr/src/sys/arch/i386/compile/LUNA i386
>Description:
"ifconfig ath0 down" does not power down Atheros 5212 mini-pci type IIIB
Wi/Fi card.  The Wi/Fi power light on the laptop stays on, and the laptop
has the same battery life regardless of whether the "ath0" interface is
up or not, and the battery life with the Atheros card installed is
approx. 30 min less than when the card is removed.
>How-To-Repeat:
Measure rate of power drain between "ifconfig ath0 up" &
"ifconfig ath0 down", when the Atheros 5212 mini-pci type IIIB
card is installed in a laptop.
>Fix:
Not a fix, but the Atheros 5212 mini-pci type IIIB was borrowed from a
D-Link DI-774 (H/W:A1 F/W:1.2) Wi/Fi router, which may have had its
power off functionality removed in hardware.  Don't know if that is the case.  If so, then the fix would be to replace the mini-pci card with a
version intended for laptops.  Can anyone with another Atheros 5212
mini-pci type IIIB, that was not taken from a router, please test the
rate of power drain between "ifconfig ath0 up" & "ifconfig ath0 down"?
>Release-Note:
>Audit-Trail:
>Unformatted: