I looked at the usb devices in /proc/dev, and it doesn't seem to mention genesys anywhere. Here's the information, plus a little more, on a web page, ask for anything else that will help, and i'll post that too.
http://www.dtbb.net/~tyler/troubleshoot/index.html regards, Tyler. ----- Original Message ----- From: "Alan Stern" <[EMAIL PROTECTED]> To: "Tyler" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Saturday, February 28, 2004 8:15 PM Subject: Re: [linux-usb-devel] problem with usb disconnect external usb 2.0 hard drive storage > On Sat, 28 Feb 2004, Tyler wrote: > > > Hi, I'm new to the list, obviously i joined because I have a problem with > > linux usb ;) Anyways, hopefully i'm not off topic for this list, or > > breaking any rules (as I didn't see any rules while signing up, or a page to > > view any). > > > > I'm running SuSE 9.0 x86_64 (AMD Athlon64 3000, MSI K8TNEO-FIS2R > > motherboard), and have a problem trying to use an external USB 2.0 hard > > drive. The enclosure itself, is made by Bytec, and is just USB 2.0, not > > firewire capable. The hard drive is a Seagate 200gb. Below, are the steps > > i've taken with this setup. > > > Something I noticed odd to begin with, was the speed of the drive, it was > > only managing about 6 megabytes per second, where-as on windows systems, I > > usually see 17 to 30 megabytes per second with USB 2.0 drives. None the > > less, this was fast enough, and just figured it was either the drivers > > aren't optimized yet, or the chipset used in this particular external case > > wasn't very fast. As I said, oh well.. I could live with the speed. > > > > This is where the problems begin. I had a slow download transfer being > > saved on the drive during the 2nd night I had the drive hooked up. The next > > morning, I awake to see that on the console, and in the message log, the > > device shows as being disconnected: > > > > 23:11:46 linux kernel: usb.c: USB disconnect on device 00:10.4-3 address 2 > > > So, please tell me what information you may need from me, to help me > > trouble-shoot the usb drivers, and give any suggestions you might have to > > get this up and running. I don't understand at this point a) why the drive > > randomly does a disconnect (when nothings been moved, or even touched near > > the computer) b) why when there *IS* a usb disconnect, that it hangs the > > sub-system that it was connected to, and requires more or less a hard reboot > > without syncing drives, etc. c) where my data went (why the journal lost at > > least a few hours worth of transactions? and didn't notice that anything > > needed to be replayed) > > > > If anyone's actually read this far, I appreciate it, and would love to get > > some help with this. > > > > Thanks, > > Tyler. > > Actually, it would help if you were somewhat less verbose. :-) > > From the symptoms you mentioned, it sounds like you may be using a Genesys > Logic USB-IDE bridge. If you post the contents of your > /proc/bus/usb/devices file with the drive plugged in, we can see if that's > the case. If it is, there's a fairly simple fix you can apply that ought > to get the drive working right. > > If it's not, you'll have to do more digging. In particular, you'll have > to turn on USB debugging and usb-storage debugging in your kernel's > configuration and rebuild the USB parts of the kernel. The debugging logs > will contain information we need in order to see what's going on. > > In answer to your questions, _assuming_ that you do have a Genesys device: > > a) The drive randomly disconnects because the Genesys chips > contain a bug in their firmware. It only shows up in high-speed (USB 2.0) > environments. > > b) The failure of the Genesys device causes the usb-storage driver > to issue a port reset, to try and recover from the error. Unfortunately > the port-reset code in the USB subsystem is still immature and doesn't > work reliably. It can easily cause many processes and drivers to hang. > > c) I don't know. It must depend on the internal workings of the > reiserfs driver, about which I'm completely ignorant. > > Alan Stern > > > ------------------------------------------------------- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps & Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
