-
USB 2.0 Support?
I've just downloaded knoppix build 2003-01-01
It booted fine and detected all my USB 2.0 peripherals (harddrive, CD-R/RW, hub, pcmcia host controller) but they've come up only at USB 1.1 speeds.
Does anyone know how I can make it run at the full USB 2.0 speed?
The harddrive is so slow at 12 Mbps!
Thanks
-
Senior Member
registered user
Re: USB 2.0 Support?
' modprobe ehci-hcd '
From /usr/src/linux-2.4.20-xfs/Documentation/usb/ehci.txt
[[
The EHCI driver is used to talk to high speed USB 2.0 devices using
USB 2.0-capable host controller hardware. The USB 2.0 standard is
compatible with the USB 1.1 standard. It defines three transfer speeds:
- "High Speed" 480 Mbit/sec (60 MByte/sec)
- "Full Speed" 12 Mbit/sec (1.5 MByte/sec)
- "Low Speed" 1.5 Mbit/sec
USB 1.1 only addressed full speed and low speed. High speed devices
can be used on USB 1.1 systems, but they slow down to USB 1.1 speeds.
USB 1.1 devices may also be used on USB 2.0 systems. When plugged
into an EHCI controller, they are given to a USB 1.1 "companion"
controller, which is a OHCI or UHCI controller as normally used with
such devices. When USB 1.1 devices plug into USB 2.0 hubs, they
interact with the EHCI controller through a "Transaction Translator"
(TT) in the hub, which turns low or full speed transactions into
high speed "split transactions" that don't waste transfer bandwidth.
At this writing, this driver has been seen to work with implementations
of EHCI from (in alphabetical order): Intel, NEC, Philips, and VIA.
]]

Originally Posted by
Tom
I've just downloaded knoppix build 2003-01-01
It booted fine and detected all my USB 2.0 peripherals (harddrive, CD-R/RW, hub, pcmcia host controller) but they've come up only at USB 1.1 speeds.
Does anyone know how I can make it run at the full USB 2.0 speed?
The harddrive is so slow at 12 Mbps!
Thanks
Similar Threads
-
By alexjenx in forum Hardware & Booting
Replies: 1
Last Post: 05-27-2004, 01:08 AM
-
By langhaarrocker in forum Customising & Remastering
Replies: 2
Last Post: 05-22-2004, 07:45 PM
-
By dork in forum General Support
Replies: 0
Last Post: 05-05-2004, 06:12 PM
-
By baldyeti in forum The Lounge
Replies: 3
Last Post: 11-28-2003, 11:18 PM
-
By ranch137 in forum General Support
Replies: 2
Last Post: 04-16-2003, 06:08 AM
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules

🔀 Juniper Networks EX2300-C-12P 12× Gigabit PoE+ • 2× 10G SFP+ Compact Switch ⚡
$109.99

Juniper EX2300 12-Port Gigabit PoE+ Managed Network Switch P/N: EX2300-C-12P
$149.99

Juniper EX4400-EM-4S expansion modules
$599.00

Juniper Networks EX3400-24T 24-Port Ethernet Switch w/Power Cord
$174.99

Juniper MX204 +JUNOS and Dual Power Supply
$7299.99

Juniper Networks AP33-US Indoor Wifi6 (US Version) 5GHz: 4x4:4; 2.99
$24.99

Juniper EX2300-C 12 Port Compact Gigabit Switch EX2300-C-12p Discounted Cosmetic
$79.86

Juniper QFX5120-48Y-AFO 48 x 1/10/25GB SFP28 + 8 x 40/100GB Switch w/Dual AC
$8999.99

Juniper EX3400-24P 24-Port PoE+ GbE + 4-Port 1/10Gb SFP Switch
$245.00

Juniper Networks Mist Wireless Access Points, Model AP45
$59.99