Re: [PATCH 1/2] HID: i2c-hid: The interrupt should be level sensitive
From: Jiri Kosina
Date: Tue Feb 17 2015 - 07:24:27 EST
On Thu, 29 Jan 2015, Benjamin Tissoires wrote:
> > The Microsoft HID over I2C specification says two things regarding the
> > interrupt:
> > 1) The interrupt should be level sensitive
> > 2) The device keeps the interrupt asserted as long as it has more reports
> > available.
> > We've seen that at least some Atmel and N-Trig panels keep the line low as
> > long as they have something to send. The current version of the driver only
> > detects the first edge but then fails to read rest of the reports (as the
> > line is still asserted).
> > Make the driver follow the specification and configure the HID interrupt to
> > be level sensitive.
> > The Windows HID over I2C driver also seems to do the same.
> > Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
> > ---
> FWIW, this one is
> Acked-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
> looks like we are going to drop 2/2, but this one is still valid.
Applied to for-3.20/upstream-fixes, thanks for your friendly ping in form
of Ack :)
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/