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g.tomassoni
n00b
Joined: 13 Aug 2005
Posts: 51
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 Posted: Tue Nov 28, 2006 10:56 am Post subject: sys-fs/udev-103 |
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Dears,
I have a couple of "stable" gentoo boxes which recently got to be upgraded to sys-fs/udev-103.
These boxes are connected to internet through two SpeedTouch ADSL USB modems, which were used to load their firmware thanks to sys-apps/coldplug-20040920-r1 and sys-apps/hotplug-20040923-r2 .
After reading some infos about this upgrade from the gentoo lists, I applied the upgrade by previously unmerging sys-apps/coldplug-20040920-r1 .
Suddenly, my boxes turned out not to be able to upload the SpeedTouch firmware.
An excerpt of the /var/log/messages from a staging box about this is the following:
| Code: | Nov 28 11:15:47 grandfa usb 1-1: new full speed USB device using uhci_hcd and address 5
Nov 28 11:15:51 grandfa speedtch 1-1:1.0: speedtch_upload_firmware: read BLOCK4 from modem failed (-110)!
Nov 28 11:15:51 grandfa speedtch 1-1:1.0: speedtch_heavy_init: firmware upload failed (-110)! |
On the speedtch device driver list this kind of error is reported as being due to two programs both attempting to upload the firmware ad the same time.
After some tests, I found that both the new udevd AND an hotplug daemon were attempting to upload the firmware. I then attempted first stopping the hotplug daemon, but it didn't help (?!?!). Unmerging the sys-apps/hotplug package didn't helped, too.
I had to unmerge also sys-apps/hotplug-base-20040401, remove /etc/hotplug and /etc/hotplug.d, then issue a:
which basicly reinstalled both sys-apps/hotplug-base and sys-fs/udev-103.
Now udevd seems to be able to upload the firmware both at boot and at hot-plug time.
The only, annoing, thing left out is that now I get this message in /var/log/messages:
| Code: | Nov 28 11:24:00 grandfa usb 1-1: new full speed USB device using uhci_hcd and address 8
Nov 28 11:24:01 grandfa udevd-event[21873]: run_program: exec of program '/sbin/firmware_helper' failed
Nov 28 11:24:02 grandfa udevd-event[21911]: run_program: exec of program '/sbin/firmware_helper' failed
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I can't find any /sbin/firmware_helper piece of code and I'm pretty shure it is not needed at all, so I edited /etc/udev/rules.d/51-firmware.rules and placed a great, simple '#' in front of the line invoking the '/sbin/firmware_helper' script.
This seems to work, but I would like to know what the '/sbin/firmware_helper' tools is meant to. It seems to me that udev is pretty capable to deal with this stuff by itself, so what should this script/exe do and which is the package supplying it?
Thanks,
giampaolo |
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PaulBredbury
Watchman
Joined: 14 Jul 2005
Posts: 7310
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| Posted: Tue Nov 28, 2006 11:02 am Post subject: |
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| Use my replacement ebuild for udev, which stops firmware.sh from messing up the loading of the SpeedTouch firmware. |
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g.tomassoni
n00b
Joined: 13 Aug 2005
Posts: 51
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| Posted: Tue Nov 28, 2006 11:12 am Post subject: |
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| PaulBredbury wrote: | | Use my replacement ebuild for udev, which stops firmware.sh from messing up the loading of the SpeedTouch firmware. |
It seems to me there is no need to twiddle the udev-103 stuff: firmware loading works reliably now.
And, by the way, my kernel uses CONFIG_USB_SPEEDTOUCH=m...
Do you have any counter-evidence? |
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PaulBredbury
Watchman
Joined: 14 Jul 2005
Posts: 7310
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| Posted: Tue Nov 28, 2006 11:21 am Post subject: |
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Yeah, my own experiences and those of others on that thread. My hair would not have as many grey hairs if I'd thrown my SpeedTouch modems out of the window when I first laid eyes on them 
Anyway, read page 7 of the thread, especially my link to the race condition. Continue the discussion on that thread, rather than here. |
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