[ltp] T40 and USB 2.0

[Konstantin Filtschew]

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hi,

my T40 works like a charm with USB2 devices:

Harddisk on USB2 around 20MB/s

USB-Stick on USB2 around 6MB/s


The modules I need:
uhci_hcd               31760  0=20
ehci_hcd               32520  0=20
usb_storage            67904  0=20
usbhid                 34368  0
sg                     35552  0=20
sr_mod                 16804  0=20
sd_mod                 16336  0=20
usb_storage            67904  0
scsi_mod               92296  4 usb_storage,sg,sr_mod,sd_mod


Worked since linux 2.6.5 as far as I can remeber.

I'm running 2.6.11 now, so you kernel should work too, maybe it's the
patch(-ac1) you use, try to check the Changelog for changes in USB for
your patch(-ac1).


Greetz

Konstantin


On Wed, 27 Apr 2005 21:44:31 -0700
Jason LeBrun <jason@jasonlebrun.info> wrote:

> On Wed, Apr 27, 2005 at 06:02:46PM -0700, Jason LeBrun wrote:
> >> I'm having no luck getting a USB 2.0 drive to enumerate on my T40
(under=20
> >> 2.6.11-ac1). Has anyone had any success with the ehci_hcd driver on
a T40?=20
> >> if so, I'd like to hear about it!
>=20
> >A bit more details would be nice.
> >Is the drive working with USB 1?
> >which modules are loaded?
> >what happens in /var/log/kern.log when you plug the drive in?
>=20
> >Sometimes it takes several minutes for the drive to initialize. So:
> >tail -f /var/log/kern.log
> >plug in
> >wait a few minutes.
>=20
> >Michael
>=20
> Thanks for the response,
>=20
> I posted a message earlier with more details, and got no response, so
in my=20
> second attempt, I'm just trying to find someone in particular who's=20
> successfully gotten USB 2.0 working on a T40.
>=20
> Some info:
>=20
> The drive does work with USB 1 (uhci_hcd)
> The drive does not work with ehci_hcd loaded. (Whether ehci_hcd is
loaded or=20
> not)
> I've already disabled CONFIG_BLK_DEV_UB
> I tried disabling ACPI
> I've fiddled around with IRQ settings in BIOS, but nothing changes.=20
> Using 2.6.11-ac1 (also tried gentoo-sources 2.6.8, 2.6.11)
>=20
> I've already checked dmesg, and the result is a constant loop of the=20
> same attempts at enumeration, accompanied by a blinking of the
activity light=20
> on the drive, at about 3 Hz. The drive will not initialize because
it's not=20
> even enumerating. The messages are posted in an earlier message from
me, so I=20
> won't post them again, so if anyone would like to see them, you can
refer to=20
> that message.
>=20
> The non-verbose debug messages just show "device not accepting
address" over=20
> and over again. The kernel is receiving interrupts, so that's not the=20
> problem.=20
>=20
> I've tried most of the common solutions that can be found on Google,
and they=20
> haven't worked, so I think the problem is machine specific...
hopefully not=20
> my machine in particular! This is why I'm looking for someone with a
T40, in=20
> particular.
>=20
> Last time I checked, USB 2.0 worked under windows, but I haven't had
windows=20
> installed on this thing in months, now.
>=20
> Jason
>=20
>=20
>=20
>=20
> --=20
> The linux-thinkpad mailing list home page is at:
> http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad


----------------------------=20
Building an operation system without source code,
is like buying a  self assemble space shuttle without
instructions.

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