Date: Thu, 07 May 2009 00:09:11 +0200 From: "Julian Stacey" <jhs@berklix.org> To: freebsd-usb@freebsd.org Cc: Andriy Gapon <avg@icyb.net.ua> Subject: Re: devd automatic conversion of umass[0-9] to da[0-9] Message-ID: <200905062209.n46M9Bxa022017@fire.js.berklix.net> In-Reply-To: Your message "Wed, 06 May 2009 19:39:11 %2B0300." <4A01BD2F.40409@icyb.net.ua>
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Andriy Gapon wrote:
> on 06/05/2009 18:27 Julian Stacey said the following:
> > Config below works for a number of memory sticks simultaneously;
> > But if one already has a dvd burner plugged in,
> > then it fails as devd sees (in case of a first memory stick) a new umass1.
> > Although /dev/da0* get created, devd tries to access non existant da1*.
> > Any ideas how to improve this ? ( Using 7.1-RELEASE )
>
> You could try to watch for cdev events (i.e. creation of daX device nodes) instead
> of driver events. But I am not sure if cdev events are in 7.1, they are definitely
> in 7.2:
>
> notify 1000 {
> match "system" "DEVFS";
> match "subsystem" "CDEV";
> match "type" "CREATE";
> match "cdev" "^da[0-9]+$";
> action "echo 't120o3l32 b>c+f+16' > /dev/speaker";
> };
Thanks Andriy,
cdev seems to be in 7.1,
but I switched to test on a 7.2-RELEASE host:
It did not work.
cdev is not set at attach time. only available later, as shown below:
With conf:
----------
action "sleep 2; \
rm -f /devusb/kingston; touch /tmp/devd-debug/xx.$cdev ; \
ln -s /dev/`echo $device-name|sed -e s/umass/da/`a \
/devusb/kingston; \
fsck -y -t ufs /devusb/kingston; \
mount -t ufs -o noatime /devusb/kingston /usb/kingston" ;
};
----------
Devd output:
Executing 'sleep 2; rm -f /devusb/kingston; touch /tmp/devd-debug/xx. ;
ln -s /dev/`echo umass0|sed -e s/umass/da/`a /devusb/kingston;
fsck -y -t ufs /devusb/kingston;
mount -t ufs -o noatime /devusb/kingston /usb/kingston'
** /devusb/kingston
** Last Mounted on /usb/kingston
** Phase 1 - Check Blocks and Sizes
** Phase 2 - Check Pathnames
** Phase 3 - Check Connectivity
** Phase 4 - Check Reference Counts
** Phase 5 - Check Cyl groups
2 files, 1 used, 242418 free (18 frags, 30300 blocks, 0.0% fragmentation)
Popping table
Processing event '!system=DEVFS subsystem=CDEV type=CREATE cdev=pass1'
Pushing table
setting system=DEVFS
setting subsystem=CDEV
setting type=CREATE
setting cdev=pass1
Processing notify event
Popping table
Processing event '!system=DEVFS subsystem=CDEV type=CREATE cdev=da0'
ls -l /tmp/devd-debug
-rw-r--r-- 1 root wheel 0 May 6 22:52 xx.
Using your idea of alternate conf with notify instead of attach:
notify 1000 {
match "system" "DEVFS";
match "subsystem" "CDEV";
match "type" "CREATE";
match "cdev" "^da[0-9]+$";
action "touch /tmp/devd-debug/xx.cdev.$cdev \
/tmp/devd-debug/xx.vendor.$vendor" ;
};
ls -l /tmp/devd-debug
-rw-r--r-- 1 root wheel 0 May 6 23:56 xx.cdev.da0
-rw-r--r-- 1 root wheel 0 May 6 23:56 xx.vendor.
In case of notigy, devd has the reverse of attach:
$cdev is now set & available,
$vendor is not available.
I want to have all of $vendor, $product $sernum etc _And_ $cdev
so I can automatically mount sticks to known paths
( sticks being inserted at random timing relative to each other,
& not doing anything dirty with eg which port connected ).
Anyone got ideas how to achieve this ?
Cheers,
Julian
--
Julian Stacey: BSDUnixLinux C Prog Admin SysEng Consult Munich www.berklix.com
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