Re: PCMCIA modem bandwidth problem

Hi,

I've found! It's due to the new kernel I compiled.
It creates this problem with any modem (USB or CompactFlash).

It creates also problems with (only some) CompactFlash which can't be assigned
any IRQ, and thus can't be used at all.

If I find the origin of the problem (kernel configuration or problem in the
kernel), I'll let you know.

Regards

Mathieu

Le Mercredi 20 Août 2003 17:29, Mathieu BOIS a écrit :
> Hi,
>
> I tried 2 PCMCIA modem cards in the TC1000.
> - 3Com MegaHertz model 3CXM756 (56K Global GSM & Cellular Modem PC Card)
> - Toshiba SlimV90 (56K)
>
> Both used on a normal phone line.
>
> From whatever location I try, and towards whatever ISP/RAS I do, I'm
> limited at 1.5KByte per second (around 11kbps). (Under Mandrake9.1)
>
> Under WindowsXP, I've the expected 56K using the integrated modem or the
> PCMCIA cards.
>
> I tried the same cards on a Toshiba laptop (Mandrake 7 or 8), and it works
> well (around 4/5 KBytes/sec).
>
> The only difference I can see (apart from the linux distribution), is the
> IRQ, as given by setserial : under the TC1000 it is 0 whereas it is 3 on
> the Toshiba.
>
> On the PCMCIA HOWTO, I saw that an interruption conflict could cause
> problems, and that setting to 0 could solve, but would be slower.
> However, I didn't set the IRQ to 0: it is done as soon as I insert the
> card.
>
>
> Did you encountered such a problem?
>
> (By the way, is there a way now to make the internal modem work under
> Linux?)
>
> Cheers,
>
> Mathieu
>
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Received on Wed Aug 27 17:01:14 2003