linux-kernel - Re: [PATCH 3/3] HID: sensor-hub: don't limit the driver only to USB bus

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Date:	Mon, 18 Feb 2013 13:33:20 +0200
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	Alexander Holler <holler@...oftware.de>
Cc:	linux-kernel@...r.kernel.org, Jiri Kosina <jkosina@...e.cz>,
	Benjamin Tissoires <benjamin.tissoires@...il.com>,
	linux-input@...r.kernel.org, srinivas.pandruvada@...el.com
Subject: Re: [PATCH 3/3] HID: sensor-hub: don't limit the driver only to USB
 bus

On Mon, Feb 18, 2013 at 12:22:58PM +0100, Alexander Holler wrote:
> Am 18.02.2013 12:12, schrieb Mika Westerberg:
> >On Mon, Feb 18, 2013 at 12:03:04PM +0100, Alexander Holler wrote:
> >>Am 11.02.2013 11:31, schrieb Mika Westerberg:
> >>>We now have two transport mediums: USB and I2C, where sensor hubs can
> >>>exists. So instead of constraining the driver to only these two we let it
> >>>to match any HID bus as long as the group is HID_GROUP_SENSOR_HUB.
> >>>
> >>>Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
> >>>---
> >>>  drivers/hid/hid-sensor-hub.c |    3 ++-
> >>>  1 file changed, 2 insertions(+), 1 deletion(-)
> >>>
> >>>diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
> >>>index 2643bce9..c01f10d 100644
> >>>--- a/drivers/hid/hid-sensor-hub.c
> >>>+++ b/drivers/hid/hid-sensor-hub.c
> >>>@@ -603,7 +603,8 @@ static void sensor_hub_remove(struct hid_device *hdev)
> >>>  }
> >>>
> >>>  static const struct hid_device_id sensor_hub_devices[] = {
> >>>-	{ HID_DEVICE(BUS_USB, HID_GROUP_SENSOR_HUB, HID_ANY_ID, HID_ANY_ID) },
> >>>+	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, HID_ANY_ID,
> >>>+		     HID_ANY_ID) },
> >>>  	{ }
> >>>  };
> >>>  MODULE_DEVICE_TABLE(hid, sensor_hub_devices);
> >>>
> >>
> >>Hmm, what happens with Bluetooth sensor-hubs? Is the driver now able
> >>to handle them too?
> >
> >It should, yes.
> 
> If so, I think patch 1/3 should be modified accordingly.

Do you know if such devices exists currently? If not, I'm not sure if it
makes sense to do that now.
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