Re: Strange device init

From: Adam Belay (ambx1_at_neo.rr.com)
Date: 02/05/05

  • Next message: Adam Belay: "Re: PNP and suspend/resumt" 
    Date:	Sat, 5 Feb 2005 16:55:04 -0500
To: Pierre Ossman <drzeus-list@drzeus.cx>

    On Sat, Feb 05, 2005 at 06:10:02PM +0100, Pierre Ossman wrote:
    > I'm having problem with a card reader on a laptop (Acer Aspire 1501).
    > The device doesn't get its resources configured properly.
    >
    > The reader is connected to the LPC bus so there is no standardised way
    > to configure the device. On other laptops the configuration is done via
    > ACPI (_STA & co. in the DSDT). On this laptop these functions don't do a
    > damn thing.
    > In Windows this device gets configured through some other means. It's
    > not in the driver (I've disected it to confirm this). But under Linux
    > the device is left unconfigured.
    >
    > So my question is if anyone has any ideas on how this device gets
    > configured by Windows and possibly how we can get this to work on Linux.
    >
    > The reason this is an issue is that one cannot detect all the quirks of
    > the hardware so a PNP solution is prefered. In those cases the
    > manufacturer has chosen resources that work ok.
    >
    > For some context: I am the maintainer of the driver for this hardware. I
    > have a laptop where the DSDT properly sets up the hardware. The Acer
    > belongs to some of my users but they are not familiar with the kernel so
    > I'm trying to fix this for them.
    >
    > Rgds
    > Pierre

    So the device is not listed in the DSDT, or _SRS doesn't work? Does _STA
    succeed? Finally have you checked if PnPBIOS detects the device? Any
    additional information you could provide would be appreciated.

    Thanks,
    Adam
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  • Next message: Adam Belay: "Re: PNP and suspend/resumt"

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