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Add a comment about the origin of some structures, defines and so on.

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MFC after:	1 week
This commit is contained in:
hselasky 2014-02-01 06:58:16 +00:00
parent 859fb3bb22
commit 06ee51ac6d
1 changed files with 19 additions and 0 deletions
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19
sys/dev/usb/input/wsp.c
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@ -123,6 +123,25 @@ SYSCTL_INT(_hw_usb_wsp, OID_AUTO, scr_hor_threshold, CTLFLAG_RW,
#define WSP_IFACE_INDEX 1
/*
* Some tables, structures, definitions and initialisation values for
* the touchpad protocol has been copied from Linux's
* "drivers/input/mouse/bcm5974.c" which has the following copyright
* holders under GPLv2. All device specific code in this driver has
* been written from scratch. The decoding algorithm is based on
* output from usbdump.
*
* Copyright (C) 2008 Henrik Rydberg (rydberg@euromail.se)
* Copyright (C) 2008 Scott Shawcroft (scott.shawcroft@gmail.com)
* Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
* Copyright (C) 2005 Johannes Berg (johannes@sipsolutions.net)
* Copyright (C) 2005 Stelian Pop (stelian@popies.net)
* Copyright (C) 2005 Frank Arnold (frank@scirocco-5v-turbo.de)
* Copyright (C) 2005 Peter Osterlund (petero2@telia.com)
* Copyright (C) 2005 Michael Hanselmann (linux-kernel@hansmi.ch)
* Copyright (C) 2006 Nicolas Boichat (nicolas@boichat.ch)
*/
/* button data structure */
struct bt_data {
uint8_t unknown1; /* constant */