[ltp] Re: External USB drive

[Alex Kempshall]

The output from lspci suggests no USB2 -

00:1d.0 USB Controller: Intel Corp. 82801CA/CAM USB (Hub #1) (rev 02) 
(prog-if 00 [UHCI])
        Subsystem: IBM ThinkPad A/T/X Series
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin A routed to IRQ 11
        Region 4: I/O ports at 1800 [size=32]

00:1d.1 USB Controller: Intel Corp. 82801CA/CAM USB (Hub #2) (rev 02) 
(prog-if 00 [UHCI])
        Subsystem: IBM ThinkPad A/T/X Series
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin B routed to IRQ 11
        Region 4: I/O ports at 1820 [size=32]

00:1d.2 USB Controller: Intel Corp. 82801CA/CAM USB (Hub #3) (rev 02) 
(prog-if 00 [UHCI])
        Subsystem: IBM ThinkPad A/T/X Series
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin C routed to IRQ 11
        Region 4: I/O ports at 1840 [size=32]

Regards


>From: Matt Graham <danceswithcrows@usa.net>
>Reply-To: linux-thinkpad@linux-thinkpad.org
>To: linux-thinkpad@linux-thinkpad.org
>Subject: Re: [ltp] Re: External USB drive
>Date: Thu, 20 Jan 2005 12:42:37 -0500
>
>On Thursday 20 January 2005 12:11, after a long battle with technology,
>Alex Kempshall wrote:
> > On Thu, 19 Aug 2004, Hector Socas Navarro wrote:
> >> I recently purchased a 200Gb extrenal hard drive (USB 2).
> >> [root@sauron root]# hdparm -Tt /dev/sda
> >>   Timing buffered disk reads:  64 MB in 93.69 seconds =699.50 kB/sec
> >> Something's very wrong here. I should be getting ~40 MB/sec, right?
> >> I'm running RedHat 7.3 with some updates and kernel 2.4.22 on a T30
>
>I Googled for the T30 and didn't find anything saying that it had a USB2
>chipset in it.  I didn't find anything saying that it *didn't* have a
>USB2 chipset, either.  You can figure out whether you have a USB2
>chipset by doing "lspci -vv | grep HCI".  If "EHCI" shows up, you have
>a USB2 chipset.  If not, you don't, and you will be limited to USB1
>speeds.
>
>If you have a USB2 chipset, you need to have the ehci_hcd module loaded.
>modprobe that if it's not in lsmod's output.
>
> > Was a solution found for this like using a PCMIA USB 2.0 card?
>
>If the T30 doesn't have a USB2 chipset, a PCMCIA USB2 card will be the
>best bet.  HTH,
>
>--
>    Jesus is the best radio producer in the beans.  We need some saliva
>    and pickles to get mad.   --MegaHAL, "The Best of MegaHAL"
>There is no Darkness in Eternity/But only Light too dim for us to see
>--
>The linux-thinkpad mailing list home page is at:
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