From: Jiri Kosina <jikos@kernel.org>
To: Dean Camera <dean@fourwalledcubicle.com>
Cc: linux-input@vger.kernel.org, benjamin.tissoires@redhat.com
Subject: Re: [V3, PATCH] Increase HID maximum packet size to 16KB.
Date: Fri, 27 Nov 2020 15:45:22 +0100 (CET) [thread overview]
Message-ID: <nycvar.YFH.7.76.2011271544480.3441@cbobk.fhfr.pm> (raw)
In-Reply-To: <20201125223934.5861-1-dean@fourwalledcubicle.com>
On Thu, 26 Nov 2020, Dean Camera wrote:
> Currently the maximum HID report size which can be buffered by the
> kernel is 8KB. This is sufficient for the vast majority of HID
> devices on the market, as most HID reports are fairly small.
>
> However, some unusual devices such as the Elgate Stream Deck exist
> which use a report size slightly over 8KB for the image data that
> is sent to the device. Reports these large cannot be buffered by
> the regular HID subsystem currently, thus the only way to use such
> device is to bypass the HID subsystem entirely.
>
> This increases the maximum HID report size to 16KB, which should
> cover all sanely designed HID devices.
Seeing the evolution of this constant over the course of years really
reminds me of "640KB should be enough for everybody" :)
Applied, thanks Dean.
--
Jiri Kosina
SUSE Labs
prev parent reply other threads:[~2020-11-27 14:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-25 22:39 [V3, PATCH] Increase HID maximum packet size to 16KB Dean Camera
2020-11-27 14:45 ` Jiri Kosina [this message]
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