#1752 BLOC Trial-2: USB wireless suspend/resume failure at setup phase
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Thu Jun 28 22:59:19 EDT 2007
#1752: USB wireless suspend/resume failure at setup phase
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Reporter: marcelo | Owner: marcelo
Type: defect | Status: new
Priority: blocker | Milestone: Trial-2
Component: wireless | Version:
Resolution: | Keywords:
Verified: 0 |
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Comment (by jcardona):
'''One more test:''' I added a debugfs hook that sends the command to the
wlan firmware to detach from USB. Then, using
[http://dev.laptop.org/~wmb/sdkit.tgz sdkit] I toggled GPIO15, which
signals the wlan firmware to reattach to the USB bus.
The results on both laptops were identical: the wireless module detaches
correctly, and reattaches when signaled. The setup phase (enumeration) is
successful. Logs for
[https://cozybit1.dnsalias.org/~javier/debug_olpc_usb/debugfs-resume-good-
xo.log xo1] and [https://cozybit1.dnsalias.org/~javier/debug_olpc_usb
/debugfs-resume-bad-xo.log xo2]. (Note that the wlan reset that appears
after enumeration is triggered by the driver when it fails to download the
firmware. Under normal resume, there is no attempt to download firmware.)
--
Ticket URL: <http://dev.laptop.org/ticket/1752#comment:9>
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