Ubuntu
linux-source-2.6.15 package

at76c503 driver won't send in ad-hoc mode

Bug #57625 reported by Steven Walter on 2006-08-24

	Status	Importance	Assigned to
linux-source-2.6.15 (Ubuntu)	Won't Fix	Medium	Unassigned
linux-source-2.6.17 (Ubuntu)	Won't Fix	Undecided	Unassigned
linux-source-2.6.20 (Ubuntu)	Fix Released	Undecided	Unassigned

Bug Description

Steps to reproduce:

1. load at76c503-rfmd.ko
2. iwconfig essid MYSSID (driver associates)
3. attempt to ping (no ping)
4. tcpdump -i wlan0 (shows incoming traffice)

Expected:
ping replies and outgoing packets.

This bug does not occur with at76c503a-0.13, which was recently released. I did a diff of Ubuntu's version and 0.13, and found two hunks, which applied, resolves the bug in Ubuntu's version. I'll try to attach said patch, I don't see a button for that yet...

See original description

Revision history for this message

Steven Walter (stevenrwalter) wrote on 2006-08-24:

Proposed fix Edit (638 bytes, text/plain)

Here's the above-mentioned patch.

Steven Walter (stevenrwalter) on 2006-08-25

description:

updated

Daniel T Chen (crimsun) on 2006-08-28

Changed in linux-source-2.6.15:
importance:	Untriaged → Medium
status:	Unconfirmed → In Progress

Revision history for this message

Steven Walter (stevenrwalter) wrote on 2006-09-10:

I wanted to report that the problem also exists in the latest Edgy kernel. My fix resolves the bug there, too.

Revision history for this message

mungewell (simon-mungewell) wrote on 2006-10-04:

Just confirm that I have the same problem (with a WUSB11 V2.8) that the driver can't transmit when in Ad-Hoc.

Turning on debug with 'iwpriv wlan0 set_debug 180' shows that it's receiving however the TX data doesn't show up (as it does in Managed mode). TX counter in 'ifconfig' doesn't increase either.

I did find that the driver at http://at76c503a.berlios.de/ seems to work better.

I'll try to check the patch out,
Simon.

Revision history for this message

Steven Walter (stevenrwalter) wrote on 2006-10-10:

Patch was mailed to kernel-team mailing list as per KernelGitGuide on 10/5/2005.

https://lists.ubuntu.com/archives/kernel-team/2006-October/001089.html

Revision history for this message

Steven Walter (stevenrwalter) wrote on 2007-01-02:

This bug has been open for a while, and it still affects the latest feisty kernels. Any chance of getting this patch in, or perhaps even including the latest berlios driver in it?

Revision history for this message

Ben Collins (ben-collins) wrote on 2007-01-02:

This patch is already in the driver in our 2.6.20 kernels.

Changed in linux-source-2.6.20:
status:	Unconfirmed → Fix Released

Revision history for this message

Steven Walter (stevenrwalter) wrote on 2007-01-03:

Aha. My problem was a different one, this time. I can confirm that my at76 usb dongle will rx and tx with the current feisty kernel. Does that mean this bug can be closed?

Revision history for this message

Leann Ogasawara (leannogasawara) wrote on 2008-03-11:

Just cleaning up the older kernel tasks. This was fixed in 2.6.20. I'm closing the 2.6.17 and 2.6.15 tasks as this does not qualify for a stable release update. Thanks.