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BTMAGIC(4)		 BSD Kernel Interfaces Manual		    BTMAGIC(4)

NAME
     btmagic — Apple Magic Mouse

SYNOPSIS
     btmagic*  at bthub?
     wsmouse*  at btmagic?

DESCRIPTION
     The btmagic driver provides support for the Bluetooth “Magic Mouse” from
     Apple, Inc.  As remote devices cannot be discovered by autoconfig, con‐
     figuring a mouse is normally carried out with the btdevctl(8) program.

     The Magic Mouse uses the standard USB Human Interface Device protocol to
     communicate, but does not provide a proper HID Descriptor, and requires
     specific initializations to enable the proprietary touch reports.

     The Magic Mouse provides basic mouse functionality with two buttons, and
     the btmagic driver additionally interprets the touch reports to emulate a
     middle mouse button when more than one firm touch is detected during a
     click event, plus horizontal and vertical scrolling for touch movements
     greater than a certain distance.  The mouse has a base resolution of
     1300dpi, which the driver scales by default to a less sensitive 650dpi,
     but this is adjustable with sysctl(8) along with the pressure needed to
     discern a firm touch, the minimum distance necessary to trigger scrolling
     and the additional downscale factor applied to scroll movements.

     btmagic interfaces to the system as usual through the wsmouse(4) driver,
     and the following properties are used during autoconfiguration:

     vendor-id	    Must be 0x05ac.

     product-id	    Must be 0x030d.

     local-bdaddr   Local device address.

     remote-bdaddr  Remote device address.

     link-mode	    This optional string represents the link mode of the base‐
		    band link, and may be one of ‘auth’, ‘encrypt’, or
		    ‘secure’.

     When the btmagic driver has configured, it will attempt to open a connec‐
     tion to the mouse and, if this fails or the connection is lost, will wait
     for the mouse to initiate connections.  The Magic Mouse requires connec‐
     tions to be authenticated, and should accept a PIN of ‘0000’ during the
     pairing process.

SEE ALSO
     bluetooth(4), bthub(4), wsmouse(4), btdevctl(8), sysctl(8)

HISTORY
     The btmagic driver was written by Iain Hibbert with reference to the
     Linux driver written by Michael Poole.

BSD			       October 11, 2010				   BSD

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