From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Tissoires Subject: [PATCH 02/13] HID: core: do not scan reports if the group is already set Date: Tue, 30 Sep 2014 13:18:24 -0400 Message-ID: <1412097515-17241-3-git-send-email-benjamin.tissoires@redhat.com> References: <1412097515-17241-1-git-send-email-benjamin.tissoires@redhat.com> Return-path: In-Reply-To: <1412097515-17241-1-git-send-email-benjamin.tissoires@redhat.com> Sender: linux-kernel-owner@vger.kernel.org To: Jiri Kosina , Nestor Lopez Casado , Andrew de los Reyes Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org List-Id: linux-input@vger.kernel.org This allows the transport layer (I have in mind hid-logitech-dj and uhid) to set the group before it is added to the hid bus. This way, it can bypass the hid_scan_report() call, and choose in advance which driver will handle the newly created hid device. Signed-off-by: Benjamin Tisssoires --- drivers/hid/hid-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 6cfecb8..f4323d2 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -2532,7 +2532,8 @@ int hid_add_device(struct hid_device *hdev) * Scan generic devices for group information */ if (hid_ignore_special_drivers || - !hid_match_id(hdev, hid_have_special_driver)) { + (!hdev->group && + !hid_match_id(hdev, hid_have_special_driver))) { ret = hid_scan_report(hdev); if (ret) hid_warn(hdev, "bad device descriptor (%d)\n", ret); -- 2.1.0