[Bug 88746] Re: ehci_hcd module causes I/O errors in USB 2.0 devices

[Marcelo R. Minholi]

This is happening here too. I'm with Jaunty and using kernel 2.6.28-15
from jaunty-proposed. There is some usb bugfixes on it, but also did not
solve this problem.

My laptop is an Acer 5100-5196

$ lsusb
Bus 001 Device 004: ID 152d:2339 JMicron Technology Corp. / JMicron USA Technology Corp. 
Bus 001 Device 002: ID 5986:0100 Acer, Inc OrbiCam
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 15d9:0a33  
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

JMicron is my external HDD enclosure (Satellite AX-323)

$ lspci |grep USB
00:13.0 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller (rev 80)
00:13.1 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller (rev 80)
00:13.2 USB Controller: ATI Technologies Inc IXP SB400 USB2 Host Controller (rev 80)

Now it's correctly detected, but after some time I get I/O errors and
the device is re-connected through ohci_hcd

** Attachment added: "interrupts.txt"
   http://launchpadlibrarian.net/30067129/interrupts.txt

-- 
ehci_hcd module causes I/O errors in USB 2.0 devices
https://bugs.launchpad.net/bugs/88746
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