On Tue, 2 Mar 2004, Florian Voswinkel wrote:
Hi,
I tried this with Debian kernel-image-2.4-586tsc (2.4.23) and a plain 2.6.3 kernel. The controller is part of an old Pentium Classic/MMX board (1997, APM, PnP 1.0a, PCI 2.1, AWARD 4.51PG BIOS), named VT586VXC, vendor unknown. It works well with the usb-uhci or uhci (uhci-hcd on 2.6.3) driver for my mouse and gamepad ("low speed devices"). I tried several configurations with different IRQs (not sharing) etc. for the controller and both usb-ports but this did not change my problem.
The devices which cause the problem are CSR based bluetooth devices (MSI PC2PC aka MS6967 or Epox BT-DG02A).
Whenever I plug one of the devices in, they won't appear in /proc/usb/devices. Instead, on kernel 2.4.23 I get messages like "device XYZ did not accept address ZYX" several times (I forgot to copy the messages yesterday, but I can do this if needed), but the device never appears in proc.
Using kernel 2.6.3, I get messages like shown below.
Is there any chance getting this up working?
Thanks in advance, Florian
It would help if you could configure your 2.6.3 kernel with USB debugging turned on. The debugging log ought to help pin down where the trouble occurs. Also, it looks like your kernel-log daemon is dropping characters; using dmesg should help make the text more readable.
Alan Stern
Thanks for the fast answer, I finally found out: This was caused by badly designed hardware.
I turned USB debugging on and the driver asked "... bad cable?". So I tried plugging the devices directly into the slot. After doing this, the devices got working addresses and I got them in proc etc.
But it was still not possible to use them: The hci_usb-driver lost connection after having transfered some data...
Lately I found out, that the pull-down resistors at those old USB-ports were not 15k but ~20k, so I guess this is what could have caused the trouble. I did not want to invest more time in this so I got a cheap VIA-based PCI USB interface now and everythings works fine... even with two of my cables in a row.
Florian Voswinkel
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