On 18. 2. 2014 21:51, Alan Stern wrote:
On Tue, 18 Feb 2014, [windows-1252] Michal �mucr wrote:
On 17.2.2014 20:48, Alan Stern wrote:
This isn't a USB problem.
Hello,
I'm experiencing very similar messages after every disconnection of USB
soundcard (snd-usb-audio module). During searching for other similar
occurrences of message, i've found few patches. One kind basically
prevents sysfs from popping those messages at sysfs group attribute
removal - https://lkml.org/lkml/2013/11/23/102 and isn't included in
3.14-rc2, other kind of patches, if i got that correctly, fixes removal
ordering or its visibility at underlying subsystem (eg. SCSI, PCI for
Thunderbolt hotplugging) to make sysfs happy.
Do you know, that there was some general decision, to intentionally
don't modify sysfs and fix that for every subsystem, which triggers that
messages?
Yes, there was indeed such a decision.
Just asking, because then it would be probably nice to modify something
also at USB audio..
my dmesg with WARNING:
http://vpub.smucr.cz/pub/bbb/debug/dmesg-reconnections.log
and i probably not alone:
http://forums.funtoo.org/viewtopic.php?pid=10327
If you want to pursue this, you should contact the alsa-devel mailing
list and the maintainers of the Sound subsystem.
Alan Stern
Hello Alan,
thank you for information.
Best regards,
Michal Smucr
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