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This patch adds basic support for Freescale MPR121 capacitive touch sensor. It's an i2c controller with up to 12 capacitance sensing inputs. Product information (data sheet, application notes) can be found here: http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MPR121 Signed-off-by: Zhang Jiejing <jiejing.zhang@freescale.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
20 lines
527 B
C
20 lines
527 B
C
/* Header file for Freescale MPR121 Capacitive Touch Sensor */
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#ifndef _MPR121_TOUCHKEY_H
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#define _MPR121_TOUCHKEY_H
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/**
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* struct mpr121_platform_data - platform data for mpr121 sensor
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* @keymap: pointer to array of KEY_* values representing keymap
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* @keymap_size: size of the keymap
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* @wakeup: configure the button as a wake-up source
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* @vdd_uv: VDD voltage in uV
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*/
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struct mpr121_platform_data {
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const unsigned short *keymap;
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unsigned int keymap_size;
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bool wakeup;
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int vdd_uv;
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};
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#endif /* _MPR121_TOUCHKEY_H */
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