linux-kernel - [PATCH 1/3] HID: extend autodetect to handle I2C sensors as well

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Message-Id: <1360578679-7029-1-git-send-email-mika.westerberg@linux.intel.com>
Date:	Mon, 11 Feb 2013 12:31:17 +0200
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	linux-kernel@...r.kernel.org
Cc:	Jiri Kosina <jkosina@...e.cz>,
	Benjamin Tissoires <benjamin.tissoires@...il.com>,
	linux-input@...r.kernel.org, srinivas.pandruvada@...el.com,
	Mika Westerberg <mika.westerberg@...ux.intel.com>
Subject: [PATCH 1/3] HID: extend autodetect to handle I2C sensors as well

Since the advent of HID over I2C protocol, it is possible to have sensor
hubs behind I2C bus as well. We can autodetect this in a same way than USB
sensor hubs.

Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
---
 drivers/hid/hid-core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index eb2ee11..fe3a59e 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -729,7 +729,7 @@ static int hid_scan_report(struct hid_device *hid)
 			item.type == HID_ITEM_TYPE_MAIN &&
 			item.tag == HID_MAIN_ITEM_TAG_BEGIN_COLLECTION &&
 			(item_udata(&item) & 0xff) == HID_COLLECTION_PHYSICAL &&
-			hid->bus == BUS_USB)
+			(hid->bus == BUS_USB || hid->bus == BUS_I2C))
 			hid->group = HID_GROUP_SENSOR_HUB;
 	}
 
-- 
1.7.10.4

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