userfaq.sgml

usb develop guide

<chapter>
  <Title>Frequently Asked Questions</>

<Para>
There certain questions that keep reappearing. This section tries to 
answer those questions.
</>

<SimpleSect><Title>How do I report a bug?</title>
<para>
In addition to the information required in
<FileName>/usr/src/linux/REPORTING-BUGS</FileName>, it also helps
enormously if you provide the output of
<FileName>/proc/bus/usb/devices</FileName>. If you are having problems
with your host controller being recognised, it helps to have the
output of <FileName>lspci -v</FileName>. If it is supposed to be UHCI, it
helps to know whether interrupts are being generated every second.
</para>
</SimpleSect>


<SimpleSect><title>What is a good book on USB</title>
<Para>
I have only read one, and thought it was very poor. I suggest that you
get the specifications from <ulink url="http://www.usb.org">http://www.usb.org
</ulink>, which are at no cost, are quite readable, and are up to date.
</para>
</SimpleSect>

<SimpleSect><Title>How do I make USB work on my Sony Vaio laptop?</>
<Para>
You may need to turn off the BIOS option for Plug-n-Play operating
system support on some models of Vaio. Then USB should work fine,
although you may have problems with using the modem. This is only
needed on some models.
</>
</SimpleSect>

<SimpleSect><Title>How do I make USB be detected on my machine?</>
<Para>
If you are sure that you actually have a suitable hardware setup,
look for a BIOS option that could be applicable. It might be labelled
as USB, or it might be more obscure, discussing Plug-n-Play, or
having options for various types of operating systems. You may need
to try various combinations.</>
</SimpleSect>

<SimpleSect><Title>I've upgraded and USB doesn't work on my machine anymore</>
<Para>
If you have a motherboard with BIOS set to MPS 1.4, try MPS 1.1.
</>
</SimpleSect>

<SimpleSect><Title>My Asus motherboard doesn't work, or works with only one device</>
<Para>
Some early Asus P2B-DS and P2B-D motherboards have a design flaw that means that
the chipset doesn't get sufficient voltage. I suggest returning the motherboard.
Alternatively, check the Asus website at
<ulink url="http://www.asus.com.tw/supportnews/english/mainboard/p2bx/17695.html">
http://www.asus.com.tw/supportnews/english/mainboard/p2bx/17695.html</ulink> for
a hardware solution.
</>
</SimpleSect></Chapter>