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ps2_drv: reset mouse at startup
This patch replaces the set-defaults command by a reset command, which is needed to use the Lenovo x250 trackpoint. (original patch by Christian Prochaska)
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61551e4d76
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@ -31,6 +31,7 @@ class Ps2::Mouse : public Input_driver
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CMD_ENABLE_STREAM = 0xf4,
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CMD_DISABLE_STREAM = 0xf5,
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CMD_SET_DEFAULTS = 0xf6,
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CMD_RESET = 0xff,
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};
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enum Return
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@ -174,9 +175,13 @@ class Ps2::Mouse : public Input_driver
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void reset()
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{
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_aux.write(CMD_SET_DEFAULTS);
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_aux.write(CMD_RESET);
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if (_aux.read() != RET_ACK)
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Genode::warning("could not set defaults");
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Genode::warning("could not reset mouse (missing ack)");
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if (_aux.read() != 0xaa)
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Genode::warning("could not reset mouse (unexpected response)");
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if (_aux.read() != 0x00)
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Genode::warning("could not reset mouse (unexpected secondary response)");
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_aux.write(CMD_ENABLE_STREAM);
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if (_aux.read() != RET_ACK)
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