diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2014-04-19 20:39:35 -0700 |
|---|---|---|
| committer | Show Liu <show.liu@linaro.org> | 2014-06-18 12:04:51 +0800 |
| commit | 9c29111a7d5f16e5d52909b720c3b537700f9c49 (patch) | |
| tree | a1abe17c5ff70396e894f7dcacc25ee4a8c7e216 /include/linux | |
| parent | 249b8d74006bbcaff98bf00c542255a4d22df574 (diff) | |
Input: serio - add firmware_id sysfs attribute
commit 0456c66f4e905e1ca839318219c770988b47975c upstream.
serio devices exposed via platform firmware interfaces such as ACPI may
provide additional identifying information of use to userspace.
We don't associate the serio devices with the firmware device (we don't
set it as parent), so there's no way for userspace to make use of this
information.
We cannot change the parent for serio devices instantiated though a
firmware interface as that would break suspend / resume ordering.
Therefore this patch adds a new firmware_id sysfs attribute so that
userspace can get a string from there with any additional identifying
information the firmware interface may provide.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/serio.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/serio.h b/include/linux/serio.h index 36aac733840..9f779c7a2da 100644 --- a/include/linux/serio.h +++ b/include/linux/serio.h @@ -23,6 +23,7 @@ struct serio { char name[32]; char phys[32]; + char firmware_id[128]; bool manual_bind; |