[Gumstix-users] USBNet On GPSStix

[Areth Foster-W. <ar...@ar...>]

When I first got my GPSStix I set it all up and usbnet worked fine.  
Since then I did the active antenna mod running a 10k resistor from the 
pin on the gps module to the VCC on the PWM & HWUART.  I originally had 
it hitched up to the VCC on the NSSP breakout but I need that for SPI 
now.  At some point during all of this (it has been over the course of 
several months) usbnet stopped working.  I'm not sure when it happened 
because I've been using the console for most of my work.  I am using the 
most recent kernel (I compiled the buildroot and re-flashed on Tuesday) 
and made sure that the kernel module was configured etc.  usb0 comes up 
on the gumstix but my host (an XP Machine) no longer sees it correctly.  
I get Unknown USB Device.  I have the drivers installed from when I 
first got it so it should be ok.  I also tried it on my laptop in both 
Ubuntu and WinXP and ran into the same problem.  On Ubuntu it never even 
sees it get plugged in.  I was reading through and found a post about 
removing a piece from the GPStix that was allowing the USB power to 
interfere with the wall adapter socket and it seemed like this would 
solve my problem.  I just thought it was odd that it used to work and 
now it doesn't.  I thought that maybe it worked until I did the active 
antenna mod which increased the power drain to the point where USB no 
longer has enough power.  I could desolder my resistor to test my theory 
but I'd like to avoid it as it was a pain to do.  I also would like to 
know that removing the piece from the gpsstix is the right thing to do 
before I do it.  Any comments or suggestions would be most appreciated.  
Thanks in advance.
-Areth