 | | | USB devices | USB devices 2007-04-25 - By raghed trawnah
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Thank you very much for those informations, they were very useful.
best regards.
-- ---- ---- ---- ---- ---- ---- ---- ------
Alan Bartlett <stxsl_ajb@(protected)> wrote:
First, some background info. My earliest experience with Unix was back in
the early 1980s with System III (a version which had heavy influences from
Version 7 & BSD 4.1). On January 1st this year I installed Red Hat Linux 9
on my new (new to me) home system as the sole O/S. (I don't like
"ScotiforM" software.) At present, this system does not have Internet
access (nor a printer!) and so even using this mailing list is a bit of a
convoluted process.
My system has two USB ports. I've just recently been given a Hewlett
Packard ScanJet 3300C flat-bed scanner which I've attempted to use. The
system acknowledges an USB device is connected when the scanner is powered
up. The command:
sane-find-scanner
passes once I uncommented the bottom two lines in the file
/etc/sane.d/hp.conf, namely
/dev/usb/scanner0
option connect-device
Making tests and reading the log files I see that this scanner is identified
by
VENDOR 0x3f0
DEVICE 0x205
As this device code was not shown in the hp.conf file I was not surprised to
see that
scanimage -L
fails with the message
usb_control/bulk_msg: timeout
scanner.c: write_scanner: NAK received
No scanners were identified (etc, etc)
Basically I assume that the sane backend does not have support for this
scanner built in. Am I correct? Is there anything I can do?
Now the second part of my request. Can anyone please tell me how I identify
the device names for the two USB ports? What I want to do is access them in
the form of
/dev/usb/???
or similar. Assume (for this thought process) I have two black-boxes, one
connected to each of the USB ports. And finally, could someone please tell
me the physical specifications - pin-outs, voltages levels, etc - of an USB
port?
Thanks for reading this far.
Alan.
__ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ __
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Ahhh...imagining that irresistible "new car" smell?
Check outnew cars at Yahoo! Autos.
<div><BR><BR><B><I>Thank you very much for those informations, they were very
useful.</I></B></div> <div><STRONG><EM>best regards.</EM></STRONG></div> <div
><STRONG><EM>-- ---- ---- ---- ---- ---- ---- ---- ------</EM></STRONG></div>
<div> </div> <div><B><I>Alan Bartlett <stxsl_ajb@(protected)></I></B
> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT:
5px; BORDER-LEFT: #1010ff 2px solid">First, some background info. My earliest
experience with Unix was back in <BR>the early 1980s with System III (a version
which had heavy influences from <BR>Version 7 & BSD 4.1). On January 1st
this year I installed Red Hat Linux 9 <BR>on my new (new to me) home system as
the sole O/S. (I don't like <BR>"ScotiforM" software.) At present, this system
does not have Internet <BR>access (nor a printer!) and so even using this
mailing list is a bit of a <BR>convoluted process.<BR><BR>My system has two USB
ports. I've just recently been given a
Hewlett <BR>Packard ScanJet 3300C flat-bed scanner which I've attempted to use
. The <BR>system acknowledges an USB device is connected when the scanner is
powered <BR>up. The command:<BR><BR>sane-find-scanner<BR><BR>passes once I
uncommented the bottom two lines in the file <BR>/etc/sane.d/hp.conf, namely<BR
><BR>/dev/usb/scanner0<BR>option connect-device<BR><BR>Making tests and reading
the log files I see that this scanner is identified <BR>by<BR><BR>VENDOR 0x3f0
<BR>DEVICE 0x205<BR><BR>As this device code was not shown in the hp.conf file I
was not surprised to <BR>see that<BR><BR>scanimage -L<BR><BR>fails with the
message<BR><BR>usb_control/bulk_msg: timeout<BR>scanner.c: write_scanner: NAK
received<BR>No scanners were identified (etc, etc)<BR><BR>Basically I assume
that the sane backend does not have support for this <BR>scanner built in. Am I
correct? Is there anything I can do?<BR><BR>Now the second part of my request.
Can anyone please tell me how I identify <BR>the
device names for the two USB ports? What I want to do is access them in <BR
>the form of<BR><BR>/dev/usb/???<BR><BR>or similar. Assume (for this thought
process) I have two black-boxes, one <BR>connected to each of the USB ports.
And finally, could someone please tell <BR>me the physical specifications - pin
-outs, voltages levels, etc - of an USB <BR>port?<BR><BR>Thanks for reading this
far.<BR><BR>Alan.<BR><BR>__ ____ ____ ____ ____ ____ ____ ____ ____ ____ ______
__ ____ ___<BR>Get Hotmail, News, Sport and Entertainment from MSN on your
mobile. <BR>http://www.msn.txt4content.com/<BR><BR>-- <BR>Shrike-list mailing
list<BR>Shrike-list@(protected)<BR>https://www.redhat.com/mailman/listinfo
/shrike-list<BR></BLOCKQUOTE><BR><p> 
<hr size=1>Ahhh...imagining that irresistible "new car" smell?<br> Check
out
<a href="http://us.rd.yahoo.com/evt=48245/*http://autos.yahoo.com/new_cars.html
;_ylc=X3oDMTE1YW1jcXJ2BF9TAzk3MTA3MDc2BHNlYwNtYWlsdGFncwRzbGsDbmV3LWNhcnM-">new
cars at Yahoo! Autos.</a>
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