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    SubjectRe: 2.6.36/2.6.37: broken compatibility with userspace input-utils ?
    On Wed, Feb 02, 2011 at 09:31:08AM -0500, Chase Douglas wrote:
    > On 01/23/2011 12:03 PM, Mark Lord wrote:
    > > As of the 2.6.36 kernel, the userspace commands lsinput and input-kbd
    > > no longer work. And if I grab newer/patched versions of those from the latest
    > > Ubuntu 10.10, then those newer/patched versions do not work with kernels
    > > *before* 2.6.36.
    >
    > I planned on taking another look at this before we release Ubuntu 11.04
    > at the end of April. That doesn't prevent someone else from helping out
    > :), but I'll make sure the utility is working again if not.
    >

    Here you go:

    From dbe48c8044987da6e64036fa3f36d7b2826994d5 Mon Sep 17 00:00:00 2001
    From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
    Date: Mon, 24 Jan 2011 22:06:10 -0800
    Subject: [PATCH 1/2] Do not require exact version of EVDEV protocol, we can work with
    other versions too.

    Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
    ---
    input.c | 8 +++++---
    1 files changed, 5 insertions(+), 3 deletions(-)

    diff --git a/input.c b/input.c
    index 73d5df1..08f4046 100644
    --- a/input.c
    +++ b/input.c
    @@ -101,9 +101,11 @@ int device_open(int nr, int verbose)
    close(fd);
    return -1;
    }
    - if (EV_VERSION != version) {
    - fprintf(stderr, "protocol version mismatch (expected %d, got %d)\n",
    - EV_VERSION, version);
    +
    +#define EVDEV_MIN_VERSION 0x10000
    + if (version < EVDEV_MIN_VERSION) {
    + fprintf(stderr, "protocol version mismatch (need at least %d, got %d)\n",
    + EVDEV_MIN_VERSION, version);
    close(fd);
    return -1;
    }
    --
    Dmitry


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