lkml.org 
[lkml]   [2008]   [Nov]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: Linux 2.6.27-git3: no SD card reader
    Pierre Ossman wrote:
    > On Tue, 14 Oct 2008 23:27:59 +0200
    > "J.A. Magallón" <jamagallon@ono.com> wrote:
    >
    >
    >
    >>> Have you tested more than one card?
    >>>
    >> I have two (both unknown brands for me, but I write full names fwiw):
    >> - One "MBA Executive HiSpeed SD", 2Gb
    >> - One "takeMS SDHC card Class6", 8Gb
    >>
    >> Both give about 10Mb/s on read with hdparm under 2.6.27.
    >>
    >
    > And both work fine in one of the slots, but not the other?
    >
    >
    >>> What machine is this?
    >>>
    >> It's an Acer Aspire One. From what I have seen, there are two SD devices.
    >> Both are capable to read SDHC cards, I have switched cards and they work
    >> (or at the moment both are working as backwards-compatible in plain SD
    >> mode, if that even exists...).
    >>
    >
    > The SD/SDHC distinction is all software, so the hardware doesn't really
    > care.
    >
    >
    >> I call this half-working because I have to boot with a card inside a slot
    >> to have it detected. If i boot without the card-in, it even dissapears from
    >> lspci. This is just with the left SD inserted:
    >>
    >>
    >
    > No idea why this occurs. I'd guess some ACPI voodoo. You're going to
    > have to check with the PCI and/or ACPI guys to figure that part of the
    > mystery out.
    >

    This specific problem is what I thought Matthew's acpiphp patch would
    solve - see my comment
    <http://bugzilla.kernel.org/show_bug.cgi?id=11828#c1>.

    If I've got this right, then this *specific* issue isnot a regression.

    Matthew, if I have confused two similar issues, could you please help by
    explaining the differences?

    Thanks
    Alan
    --
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2008-11-23 23:27    [W:0.030 / U:61.684 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site