Re: USB devices

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Thank you very much for those informations, they were very useful.
  best regards.
  --------------------------------------------
  =20
  Alan Bartlett <[email protected]> wrote:
  First, some background info. My earliest experience with Unix was back =
in=20
the early 1980s with System III (a version which had heavy influences fro=
m=20
Version 7 & BSD 4.1). On January 1st this year I installed Red Hat Linux =
9=20
on my new (new to me) home system as the sole O/S. (I don't like=20
"ScotiforM" software.) At present, this system does not have Internet=20
access (nor a printer!) and so even using this mailing list is a bit of a=
=20
convoluted process.

My system has two USB ports. I've just recently been given a Hewlett=20
Packard ScanJet 3300C flat-bed scanner which I've attempted to use. The=20
system acknowledges an USB device is connected when the scanner is powere=
d=20
up. The command:

sane-find-scanner

passes once I uncommented the bottom two lines in the file=20
/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 identif=
ied=20
by

VENDOR 0x3f0
DEVICE 0x205

As this device code was not shown in the hp.conf file I was not surprised=
 to=20
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=20
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 identi=
fy=20
the device names for the two USB ports? What I want to do is access them =
in=20
the form of

/dev/usb/???

or similar. Assume (for this thought process) I have two black-boxes, one=
=20
connected to each of the USB ports. And finally, could someone please tel=
l=20
me the physical specifications - pin-outs, voltages levels, etc - of an U=
SB=20
port?

Thanks for reading this far.

Alan.

_________________________________________________________________
Get Hotmail, News, Sport and Entertainment from MSN on your mobile.=20
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--=20
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      =20
---------------------------------
Ahhh...imagining that irresistible "new car" smell?
 Check outnew cars at Yahoo! Autos.
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<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>&nbsp;</div>  <div><B><I>Alan Bartlett &lt;stxsl_aj=
[email protected]&gt;</I></B> wrote:</div>  <BLOCKQUOTE class=3Dreplbq style=3D=
"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Fir=
st, some background info. My earliest experience with Unix was back in <B=
R>the early 1980s with System III (a version which had heavy influences f=
rom <BR>Version 7 &amp; BSD 4.1). On January 1st this year I installed Re=
d Hat Linux 9 <BR>on my new (new to me) home system as the sole O/S. (I d=
on't like <BR>"ScotiforM" software.) At present, this system does not hav=
e Internet <BR>access (nor a printer!) and so even using this mailing lis=
t is a bit of a <BR>convoluted process.<BR><BR>My system has two USB port=
s. 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 s=
canner is powered <BR>up. The command:<BR><BR>sane-find-scanner<BR><BR>pa=
sses 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 identif=
ied <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_m=
sg: timeout<BR>scanner.c: write_scanner: NAK received<BR>No scanners were=
 identified (etc, etc)<BR><BR>Basically I assume that the sane backend do=
es 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 t=
hought 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 spe=
cifications - 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 an=
d Entertainment from MSN on your mobile. <BR>http://www.msn.txt4content.c=
om/<BR><BR>-- <BR>Shrike-list mailing list<BR>[email protected]<BR>h=
ttps://www.redhat.com/mailman/listinfo/shrike-list<BR></BLOCKQUOTE><BR><p=
>&#32;

      <hr size=3D1>Ahhh...imagining that irresistible "new car" smell?<br=
> Check out
<a href=3D"http://us.rd.yahoo.com/evt=3D48245/*http://autos.yahoo.com/new=
_cars.html;_ylc=3DX3oDMTE1YW1jcXJ2BF9TAzk3MTA3MDc2BHNlYwNtYWlsdGFncwRzbGs=
DbmV3LWNhcnM-">new cars at Yahoo! Autos.</a>

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