On Dec 09 2003, Alan Stern wrote: > On Tue, 9 Dec 2003, Rogério Brito wrote: > > I put new dmesgs at http://www.ime.usp.br/~rbrito/usb-new/, if you > > are interested in seeing how things went this time. > > They look just the same as before. > > I'm stumped. The fact that sometimes it works suggests that it's a > hardware incompatibility of some sort, like insufficient electrical power > on the bus. (Or maybe a malfunctioning USB host controller.) So does the > fact that it works with one computer but not another. However, I can't > think of much else to try. > > Did you say that it works under Windows? And if so, which version of > Windows are you using?
Well, the fact that it sometimes works and sometimes doesn't can be indicative that there's a race condition somewhere, right? I don't remember if I mentioned this, but this device is actually recognized as (at least) two devices: one as a USB Mass Storage Device and another as a USB Security Device (this is what both the manual of the Drive and Windows says). That is, ignoring the embedded hub that seems to be present in my drive. The USB Security Device seems to be (reading the manual) a second, password-protected interface for the USB Drive. Couldn't it be that there's a race condition in the order that the devices are detected and this password-protected version of the drive is the first to be detected/accessed and then it just locks everything else? Would there be any way to test the hypothesis above? Does it even make sense? BTW, I don't know if it helps, but I put a screenshot of what the Windows Device Manager tells me about the devices of my motherboard. It is at <http://www.ime.usp.br/~rbrito/usb-new/usb-screenshot.png> and I hope that it sheds some light on the situation. > Alan Stern Thank you very much, Rogério. -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Rogério Brito - [EMAIL PROTECTED] - http://www.ime.usp.br/~rbrito =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= ------------------------------------------------------- This SF.net email is sponsored by: IBM Linux Tutorials. Become an expert in LINUX or just sharpen your skills. Sign up for IBM's Free Linux Tutorials. Learn everything from the bash shell to sys admin. Click now! http://ads.osdn.com/?ad_id78&alloc_id371&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
