Date: Sat, 4 Jun 2011 20:33:14 -0600 (MDT) From: Warren Block <wblock@wonkity.com> To: Scott Gasch <scott.gasch@gmail.com> Cc: questions@freebsd.org Subject: Re: Usb printers take the same port deterministically? Message-ID: <alpine.BSF.2.00.1106041955030.34792@wonkity.com> In-Reply-To: <BANLkTinKGOJnvmm81Dk_WrygKbwK9c6SLg@mail.gmail.com> References: <BANLkTinNzPUtfMa5xbxn-z=sjm6QRBvWNw@mail.gmail.com> <alpine.BSF.2.00.1106041610280.34154@wonkity.com> <BANLkTinKGOJnvmm81Dk_WrygKbwK9c6SLg@mail.gmail.com>
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On Sat, 4 Jun 2011, Scott Gasch wrote:
> Thanks, Warren. Works great, mostly :)
> I actually need the "unlpt*" device because of publishing the raw printers. Hooking the attach/detach of those device names directly did not work. Adding an action to the "ulpt"
> device does work... but I then ran into the problem of pulling the number out of the $device variable to figure out what port just attached. After some messing around (I tried to match
> the device and serial variables) I gave up and just made two entries per printer: one for ulpt0 and one for ulpt1 (see below).
"action" can be a whole script. Of course the quoting can get ugly.
Here's what I use for a scanner. The backtick portion was from someone
on the mailing lists. Can't recall who came up with it, but they
deserve credit anyway:
attach 20 {
device-name "ugen[0-9].[0-9]";
match "vendor" "0x04b8";
match "product" "0x010a";
action "usb_devaddr=`echo $device-name | sed 's#^ugen##'` && \
chown root:saned /dev/usb/${usb_devaddr}.* && \
chmod 0660 /dev/usb/${usb_devaddr}.* && \
su saned -c '/usr/local/bin/scanbuttond \
-s /usr/local/etc/scanbuttond/buttonpressed.sh \
-S /usr/local/etc/scanbuttond/initscanner.sh \
-b /usr/local/lib/libscanbtnd-backend_epson.so'";
};
usb_devaddr is created by removing "ugen" from device-name. Then it
sets owner and permissions on the device and runs scanbuttond as user
"saned".
> Just because I'm a pain, how does this work if you have two printers
> from the same vendor? Epson's product code 0x0009, for example, means
> "high speed usb 2.0 printer". So I'm guessing, really, that any epson
> printer would match?
Different models should have different product codes. Failing that,
there might be other information available, like a model number or
serial number.
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