Re: [Linux-usb-users] problems with Acomdata external hard drive

2003-12-15 Thread Dan Christensen
[Please keep cc'ing me on follow-ups. Thanks.] Ged Haywood <[EMAIL PROTECTED]> writes: > On Sat, 13 Dec 2003, Dan Christensen wrote: > >> I'm able to capture video from a videocamera over firewire and write it to >> the USB external hard drive without dropping any frames. >> [snip] >> I have to

Re: [Linux-usb-users] problems with Acomdata external hard drive

2003-12-14 Thread Ged Haywood
Hi there, On Sat, 13 Dec 2003, Dan Christensen wrote: > My internal laptop harddisk gets about 20.5MB/s reading. From what I read > in Documentation/usb/ehci.txt, 20MB/s should be possible over USB. I guess > I'm wondering whether in practice people get near this, or if my 9MB/s over > USB is m

Re: [Linux-usb-users] problems with Acomdata external hard drive

2003-12-13 Thread Dan Christensen
[Thanks for cc'ing me on replies. I'm not subscribed, so please keep doing so. And the mailing list archive doesn't seem to contain messages in the past week, so if you've replied and not copied me, I haven't seen it.] "Stephen J. Gowdy" <[EMAIL PROTECTED]> writes: > My laptop harddisk does 18M

Re: [Linux-usb-users] problems with Acomdata external hard drive

2003-12-13 Thread Stephen J. Gowdy
My laptop harddisk does 18MB/s reading. Not sure what to expect from the harddisk in your enclosure. On Sat, 13 Dec 2003, Dan Christensen wrote: > "Stephen J. Gowdy" <[EMAIL PROTECTED]> writes: > > > Do you have the EHCI driver loaded? > > Whoops, thanks for that. Ok, now I'm connected to the dr

Re: [Linux-usb-users] problems with Acomdata external hard drive

2003-12-13 Thread Dan Christensen
"Stephen J. Gowdy" <[EMAIL PROTECTED]> writes: > Do you have the EHCI driver loaded? Whoops, thanks for that. Ok, now I'm connected to the drive at 480Mb/s. Using dd if=/dev/zero of=/mnt/... block=1024 count=1024000 (1000MB), I get writing rates of about 8MB/s. A similar command reading fr

Re: [Linux-usb-users] problems with Acomdata external hard drive

2003-12-13 Thread Stephen J. Gowdy
Do you have the EHCI driver loaded? On Sat, 13 Dec 2003, Dan Christensen wrote: > I have an external Acomdata USB/Firewire 160G hard drive and a > Cicero CardBus USB 2.0 and firewire card. My laptop (Dell Inspiron > 4150) sees both devices with the usb-ohci driver, but for some reason > they con

[Linux-usb-users] problems with Acomdata external hard drive

2003-12-13 Thread Dan Christensen
I have an external Acomdata USB/Firewire 160G hard drive and a Cicero CardBus USB 2.0 and firewire card. My laptop (Dell Inspiron 4150) sees both devices with the usb-ohci driver, but for some reason they connect at 12 Mb/s instead of 480, and so accessing the drive is *extremely* slow. They are