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Message-ID: <20071113175201.72995c65@the-village.bc.nu> Date: Tue, 13 Nov 2007 17:52:01 +0000 From: Alan Cox <alan@...rguk.ukuu.org.uk> To: earny@...4u.de Cc: list-lkml@...4u.de, linux-kernel@...r.kernel.org Subject: Re: [BUG] pcmcia serial_cs no interrupts On Tue, 13 Nov 2007 17:55:25 +0100 Ernst Herzberg <list-lkml@...4u.de> wrote: > > This pcmcia-card (UMTS Modem) only works if it shares his interrupt with > another device, eg an usb mice. Moving the mice increases the connection > speed, unplugging hangs the connection. Thats consistent with the card not generating interrupts, or the interrupts being misrouted. The serial driver polls the interrupt pending bits on the chip so the actual serial chip is clearly expecting interrupts to go somewhere. Given this seems to be card not laptop specific it looks like there is magic intiialisation gloop required by this chipset that we don't have. > At the moment this card is my only way to reach the internet, but here in > the hospital i have a lot time to test patches;) You may want to boot with irqpoll that may help a bit. Some info at: A helpful start would be to know if the setserial command (applied to whatever tty your system calls the card) helps as given in: https://bugs.launchpad.net/ubuntu/+source/pcmciautils/+bug/99479 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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