From: "Henrik Rydberg" <rydberg@euromail.se>
To: Daniel Kurtz <djkurtz@chromium.org>
Cc: Chase Douglas <chase.douglas@canonical.com>,
Yufeng Shen <miletus@chromium.org>,
linux-input@vger.kernel.org, Jiri Kosina <jkosina@suse.cz>,
linux-kernel@vger.kernel.org,
Andrew de los Reyes <adlr@chromium.org>
Subject: Re: [PATCH 1/2 v2] HID: magicmouse: Removing report_touches switch
Date: Wed, 4 Jul 2012 20:41:57 +0200 [thread overview]
Message-ID: <20120704184157.GA272@polaris.bitmath.org> (raw)
In-Reply-To: <20120704083841.GA722@polaris.bitmath.org>
> The input events stop coming when I have more than four fingers on the
> pad, but they start again if I remove the excess fingers. As if the
> transport layer chokes on messages longer than some value...
Yep, that's it. On my system, something sets the L2CAP MTU to a
whopping 48 bytes, and the code below, from l2cap_core.c,
switch (chan->mode) {
case L2CAP_MODE_BASIC:
/* If socket recv buffers overflows we drop data here
* which is *bad* because L2CAP has to be reliable.
* But we don't have any other choice. L2CAP doesn't
* provide flow control mechanism. */
if (chan->imtu < skb->len)
goto drop;
silently ignores packets larger than that value. Duh.
Henrik
prev parent reply other threads:[~2012-07-04 18:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-03 18:53 [PATCH 1/2 v2] HID: magicmouse: Removing report_touches switch Yufeng Shen
2012-07-03 20:27 ` Chase Douglas
2012-07-04 7:40 ` Henrik Rydberg
2012-07-04 7:49 ` Daniel Kurtz
2012-07-04 8:38 ` Henrik Rydberg
2012-07-04 18:41 ` Henrik Rydberg [this message]
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