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    Subject[PATCH -next] hid-example: fix some build issues
    From: Randy Dunlap <>

    samples/hid-example.o needs some Kconfig and Makefile additions
    in order to build. It should use <linux/*.h> headers from
    the build tree, so use HEADERS_CHECK to require that those
    header files be present.

    Change the kconfig symbol from tristate to bool since
    userspace cannot be built as loadable modules.

    However, I don't understand why the userspace header files are
    not present as reported in Andrew's build log, since it builds
    OK on x86_64 without any of these changes.

    Reported-by: Andrew Morton <>
    Signed-off-by: Randy Dunlap <>
    Cc: Alan Ott <>
    Cc: Jiri Kosina <>
    samples/Kconfig | 4 ++--
    samples/hidraw/Makefile | 2 ++
    2 files changed, 4 insertions(+), 2 deletions(-)

    --- linux-next-20110418.orig/samples/hidraw/Makefile
    +++ linux-next-20110418/samples/hidraw/Makefile
    @@ -6,3 +6,5 @@ hostprogs-y := hid-example

    # Tell kbuild to always build the programs
    always := $(hostprogs-y)
    +HOSTCFLAGS_hid-example.o += -I$(objtree)/usr/include
    --- linux-next-20110418.orig/samples/Kconfig
    +++ linux-next-20110418/samples/Kconfig
    @@ -62,8 +62,8 @@ config SAMPLE_KDB
    command to the kdb shell.

    config SAMPLE_HIDRAW
    - tristate "Build simple hidraw example"
    - depends on HIDRAW
    + bool "Build simple hidraw example"
    + depends on HIDRAW && HEADERS_CHECK
    Build an example of how to use hidraw from userspace.

     \ /
      Last update: 2011-04-18 20:15    [W:0.027 / U:31.960 seconds]
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