我把触摸功能加进去後功能有起来,但触摸的状况却跟正常情况不一样,不管怎么滑怎么点都会在一个弧形的范围内,点在同一点位时,根据压力的不同点位也不一样,使用getevent来看他是一直连续读取,放开也一样继续有event触发,请问该怎么改触摸功能才能起来?
使用的是TI_Android4.2.2_Devkit4.1.1 的SDK,四线式的电阻屏
/* Touchscreen Controller Data for AM335xEVM */
/* Calibrated on AM335xEVM Rev. 1.1A and 1.2A */
/* The values have to be fine tuned for other revisions, if requred */
static struct tsc_data am335xevm_touchscreen_data = {
.wires = 4,
.x = {
//.min = 0xCB,
.min = 0x95a,
//.max = 0xF9B,
.max = 0xFC8,
.inverted = 0,
},
.y = {
//.min = 0xC8,
.min = 0x862,
//.max = 0xE93,
.max = 0xF21,
.inverted = 0,
},
.x_plate_resistance = 200,
.steps_to_configure = 5,
};
static struct adc_data am335x_adc_data = {
.adc_channels = 4,
};
static struct mfd_tscadc_board tscadc = {
.tsc_init = &am335xevm_touchscreen_data,
.adc_init = &am335x_adc_data,
};
/* Beaglebone Black */
static struct evm_dev_cfg beaglebone_black_dev_cfg[] = {
{am335x_rtc_init, DEV_ON_BASEBOARD, PROFILE_NONE},
{tps65217_init, DEV_ON_BASEBOARD, PROFILE_NONE},
{lcdc_init, DEV_ON_BASEBOARD, PROFILE_NONE},
{mfd_tscadc_init, DEV_ON_BASEBOARD, PROFILE_NONE},
{mii1_init, DEV_ON_BASEBOARD, PROFILE_NONE},
{usb0_init, DEV_ON_BASEBOARD, PROFILE_NONE},
{usb1_init, DEV_ON_BASEBOARD, PROFILE_NONE},
{mmc1_init, DEV_ON_BASEBOARD, PROFILE_NONE},
{mmc0_init, DEV_ON_BASEBOARD, PROFILE_NONE},
{i2c2_init, DEV_ON_BASEBOARD, PROFILE_NONE},
{mcasp0_init, DEV_ON_BASEBOARD, PROFILE_NONE},
{sgx_init, DEV_ON_BASEBOARD, PROFILE_NONE},
{NULL, 0, 0},
};
以上是在board-am335xevm.一些有关触摸屏的配置,
