341deefe8f
Abort driver initialization if X plate resistance was not specified in platform data as it will cause pressure to be always calculated as 0, and making userspace ignore touch coordinates. Signed-off-by: Philip Rakity <prakity@marvell.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
24 lines
703 B
C
24 lines
703 B
C
#ifndef __LINUX_I2C_TSC2007_H
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#define __LINUX_I2C_TSC2007_H
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/* linux/i2c/tsc2007.h */
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struct tsc2007_platform_data {
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u16 model; /* 2007. */
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u16 x_plate_ohms; /* must be non-zero value */
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u16 max_rt; /* max. resistance above which samples are ignored */
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unsigned long poll_delay; /* delay (in ms) after pen-down event
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before polling starts */
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unsigned long poll_period; /* time (in ms) between samples */
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int fuzzx; /* fuzz factor for X, Y and pressure axes */
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int fuzzy;
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int fuzzz;
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int (*get_pendown_state)(void);
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void (*clear_penirq)(void); /* If needed, clear 2nd level
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interrupt source */
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int (*init_platform_hw)(void);
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void (*exit_platform_hw)(void);
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};
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#endif
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