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From: Jason Vas Dias <jason.vas.dias@gmail.com>
To: linux-hotplug@vger.kernel.org
Subject: Re: why does udev-167 break /lib64/udev/firmware ?
Date: Thu, 14 Apr 2011 19:29:24 +0000	[thread overview]
Message-ID: <201104142029.25205.jason.vas.dias@gmail.com> (raw)
In-Reply-To: <201104141753.22335.jason.vas.dias@gmail.com>

corrections - a couple of typos in previous mails:
> I use both elf_x86_64 binaries, which link to /usr/lib64, and elf_i386 binaries,
> which link to /lib64
                           ^- should be '32'

Final scriptlet:

#!/bin/bash
logger "FIRMWARE: $1 $2"
if  ! echo "$1" | egrep -q '^--firmware' ; then 
   logger "FIRMWARE: bad firmware arg: $1";
   exit 1;
elif ! echo "$2" | egrep -q '^--devpath' ; then 
   logger "FIRMWARE: bad  devpath arg: $2";
   exit 1;
fi
firmware=$1
firmware=${firmware#--firmware=}
devpath=$2
devpath=${devpath#--devpath=}
if [ ! -f /sys/${devpath}/loading ] ; then
   logger "FIRMWARE: no loading: /sys/${devpath}/loading";
   exit 1;
fi
if [ ! -f /sys/${devpath}/data ] ; then
   logger "FIRMWARE: no data: /sys/${devpath}/data";
   exit 1;
fi
echo 1 > /sys/${devpath}/loading
cat /lib64/firmware/${firmware} > /sys/${devpath}/data;
# ^-- not 'cp -fp', though this works too
status=$?;
echo 0 > /sys/${devpath}/loading
logger "FIRMWARE: copied /lib64/firmware/$firmware to /sys/${devpath}/loading OK: $status"
exit $status;
#

That libusb message arose when this script was just :
/lib64/udev/firmware.bin "$1" "$2" >/tmp/FW 2>&1;
status=$?;
logger "FIRMWARE STATUS: $status  -  $(cat /tmp/FW) - LOADING : $(ls -l /sys/devices/pci0000:00/0000:00:06.0/0000:30:00.0/ssb0:0/firmware/ssb0:0/loading)";
rm -f /tmp/FW || : ; 

The first time udev calls this with the correct udev arguments, the first line of a message containing the text "libusb main.c:"  is emitted. 
Then it is called once every 10 seconds or so with NO arguments for around 5 minutes because the binary executable fails .

That's OK, I've submitted a patch to remove the firmware binary and replace with the above script on all udev builds on my system -
I just thought I should let you know and potentially help others with the same issue .

Thanks & Regards,
Jason




  parent reply	other threads:[~2011-04-14 19:29 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-14 16:53 why does udev-167 break /lib64/udev/firmware ? Jason Vas Dias
2011-04-14 17:13 ` Kay Sievers
2011-04-14 19:03 ` Jason Vas Dias
2011-04-14 19:29 ` Jason Vas Dias [this message]
2011-04-14 21:26 ` Kay Sievers
2011-04-14 22:56 ` Jason Vas Dias
2011-04-14 23:00 ` Kay Sievers
2011-04-24 19:53 ` Matthias Schwarzott

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