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Old 02-03-2009, 06:37 PM
AJ Spagnoletti
 
Default EHCI/OHCI and USB 1.1 Support

In a recent upgrade to my laptop EHCI supported was added to my
kernel, I thought that this would be a good thing because I have a USB
2.0 external harddrive that I connect to my laptop for additional
storage and media. I also use a Logitech Quickcam Deluxe for Notebooks
which is a USB 1.1 device and since that upgrade I have had issues
with the webcam being disconnected at random. After some research into
the cause it appeared to be an issue with ehci support and usb 1.1
devices. My question is for my laptop, a dell inspiron e1405 with an
intel ICH7 chipset is there a way to use both USB 2.0 support and USB
1.1 support in a way that wont cause conflicts of my computer. the
output of lspci is displayed below. Right now my current workaround is
to have all usb support built as modules and ensure that ehci does not
get loaded. Thanks guys

LSPCI
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML
and 945GT Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS,
943/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME,
943/940GML Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High
Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
Port 1 (rev 01)
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
Port 2 (rev 01)
00:1c.3 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
Port 4 (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
UHCI Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
UHCI Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
UHCI Controller #3 (rev 01)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
UHCI Controller #4 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2
EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface
Bridge (rev 01)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family)
SATA IDE Controller (rev 01)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
02:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)
02:01.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller
02:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro
Host Adapter (rev 19)
02:01.2 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev 01)
02:01.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host
Adapter (rev 0a)
02:01.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 05)
0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG
Network Connection (rev 02)
 

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