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Input: alps - document stick behavior for protocol V2

Document that protocol V2 uses standard (bare) PS/2 mouse packets for the DualPoint stick.

Hans de Goede committed 11 years ago

Commit 58d8a3b1 parent e3a79211 file · +8 −0Browse files

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Documentation/input/alps.txt+8−0
@@ -114,6 +114,9 @@ ALPS Absolute Mode - Protocol Version 2 · 113 unmodified lines
114114 byte 4: 0 y6 y5 y4 y3 y2 y1 y0
115115 byte 5: 0 z6 z5 z4 z3 z2 z1 z0
116116
117+Protocol Version 2 DualPoint devices send standard PS/2 mouse packets for
118+the DualPoint Stick.
119+
117120 Dualpoint device -- interleaved packet format
118121 ---------------------------------------------
119122
@@ -127,6 +130,11 @@ Dualpoint device -- interleaved packet format · 7 unmodified lines
127130 byte 7: 0 y6 y5 y4 y3 y2 y1 y0
128131 byte 8: 0 z6 z5 z4 z3 z2 z1 z0
129132
133+Devices which use the interleaving format normally send standard PS/2 mouse
134+packets for the DualPoint Stick + ALPS Absolute Mode packets for the
135+touchpad, switching to the interleaved packet format when both the stick and
136+the touchpad are used at the same time.
137+
130138 ALPS Absolute Mode - Protocol Version 3
131139 ---------------------------------------
132140