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/linux/Documentation/translations/zh_CN/accounting/
H A Dpsi.rst37 压力信息可通过/proc/pressure/ --cpu、memory、io文件分别获取。
74 示例：向/proc/pressure/memory写入"some 150000 1000000"将新增触发器，将在
75 1秒内至少一个任务阻塞于内存的总时间超过150ms时触发。向/proc/pressure/io写入
112 fds.fd = open("/proc/pressure/memory", O_RDWR | O_NONBLOCK);
114 printf("/proc/pressure/memory open error: %s\n",
121 printf("/proc/pressure/memory write error: %s\n",
152 此场景下cgroupfs挂载点的子目录包含cpu.pressure、memory.pressure、io.pressure文件，
153 内容格式与/proc/pressure/下的文件相同。
/linux/drivers/iio/pressure/
H A Dms5611_core.c105 s32 *temp, s32 *pressure) in ms5611_read_temp_and_pressure() argument
110 ret = st->read_adc_temp_and_pressure(st, temp, pressure); in ms5611_read_temp_and_pressure()
117 return st->compensate_temp_and_pressure(st, temp, pressure); in ms5611_read_temp_and_pressure()
121 s32 *temp, s32 *pressure) in ms5611_temp_and_pressure_compensate() argument
123 s32 t = *temp, p = *pressure; in ms5611_temp_and_pressure_compensate()
151 *pressure = (((p * sens) >> 21) - off) >> 15; in ms5611_temp_and_pressure_compensate()
157 s32 *temp, s32 *pressure) in ms5607_temp_and_pressure_compensate() argument
159 s32 t = *temp, p = *pressure; in ms5607_temp_and_pressure_compensate()
187 *pressure = (((p * sens) >> 21) - off) >> 15; in ms5607_temp_and_pressure_compensate()
241 s32 temp, pressure; in ms5611_read_raw() local
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H A Dabp060mg.c104 u16 pressure; in abp060mg_get_measurement() local
118 pressure = be16_to_cpu(buf[0]); in abp060mg_get_measurement()
119 if (pressure & ABP060MG_ERROR_MASK) in abp060mg_get_measurement()
122 if (pressure < ABP060MG_MIN_COUNTS || pressure > ABP060MG_MAX_COUNTS) in abp060mg_get_measurement()
125 *val = pressure; in abp060mg_get_measurement()
286 MODULE_DESCRIPTION("Honeywell ABP pressure sensor driver");
H A Dms5637.c4 * MS5837 and MS8607 pressure & temperature sensor
59 unsigned int pressure; in ms5637_read_raw() local
66 &pressure); in ms5637_read_raw()
76 *val = pressure / 1000; in ms5637_read_raw()
77 *val2 = (pressure % 1000) * 1000; in ms5637_read_raw()
247 MODULE_DESCRIPTION("Measurement-Specialties ms5637 temperature & pressure driver");
H A Dms5611.h49 s32 *temp, s32 *pressure);
52 s32 *pressure);
H A Dt5403.c3 * t5403.c - Support for EPCOS T5403 pressure/temperature sensor
25 #define T5403_PT BIT(1) /* 0 .. pressure, 1 .. temperature measurement */
48 static int t5403_read(struct t5403_data *data, bool pressure) in t5403_read() argument
53 (pressure ? (data->mode << T5403_MODE_SHIFT) : T5403_PT) | in t5403_read()
58 wait_time += pressure ? t5403_pressure_conv_ms[data->mode] : 2; in t5403_read()
269 MODULE_DESCRIPTION("EPCOS T5403 pressure/temperature sensor driver");
H A Dhp03.c5 * Driver for Hope RF HP03 digital temperature and pressure sensor.
21 * 0x77 ... read-write ADC for pressure and temperature
43 s32 pressure; /* kPa */ member
116 dev_err(dev, "Failed to read pressure\n"); in hp03_update_temp_pressure()
150 priv->pressure = ((x * 100) >> 5) + (cx_val[6] * 10); in hp03_update_temp_pressure()
178 *val = priv->pressure; in hp03_read_raw()
291 MODULE_DESCRIPTION("Driver for Hope RF HP03 pressure and temperature sensor");
H A Dms5611_i2c.c3 * MS5611 pressure and temperature sensor driver (I2C bus)
59 s32 *temp, s32 *pressure) in ms5611_i2c_read_adc_temp_and_pressure() argument
79 return ms5611_i2c_read_adc(st, pressure); in ms5611_i2c_read_adc_temp_and_pressure()
H A Dms5611_spi.c54 s32 *temp, s32 *pressure) in ms5611_spi_read_adc_temp_and_pressure() argument
78 return ms5611_spi_read_adc(st, pressure); in ms5611_spi_read_adc_temp_and_pressure()
H A Ddps310.c4 * The DPS310 is a barometric pressure and temperature sensor.
135 * Calculate pressure calibration coefficients. c00 and c10 are 20 bit in dps310_get_coefs()
209 * Set up pressure sensor in single sample, one measurement per second in dps310_startup()
224 /* Temp and pressure shifts are disabled when PRC <= 8 */ in dps310_startup()
236 /* Turn on temperature and pressure measurement in the background */ in dps310_startup()
639 s64 pressure = 0ULL; in dps310_calculate_pressure() local
692 pressure -= div64_u64_rem(-nums[i], denoms[i], &irem); in dps310_calculate_pressure()
695 pressure += div64_u64_rem(nums[i], denoms[i], &irem); in dps310_calculate_pressure()
704 pressure += div_s64(rem, 1000000000LL); in dps310_calculate_pressure()
705 if (pressure < in dps310_calculate_pressure()
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H A Dzpa2326.c513 u32 *pressure) in zpa2326_dequeue_pressure() argument
525 *pressure = 0; in zpa2326_dequeue_pressure()
534 err = regmap_bulk_read(regs, ZPA2326_PRESS_OUT_XL_REG, pressure, in zpa2326_dequeue_pressure()
550 err = regmap_bulk_read(regs, ZPA2326_PRESS_OUT_XL_REG, pressure, in zpa2326_dequeue_pressure()
583 u32 pressure; in zpa2326_fill_sample_buffer() member
591 err = zpa2326_dequeue_pressure(indio_dev, &sample.pressure); in zpa2326_fill_sample_buffer()
H A Drohm-bm1390.c3 * BM1390 ROHM pressure sensor
6 * https://fscdn.rohm.com/en/products/databook/datasheet/ic/sensor/pressure/bm1390glv-z-e.pdf
140 u32 pressure; member
145 /* BM1390 has FIFO for 4 pressure samples */
201 * We can't skip reading the pressure because the watermark IRQ is acked
202 * only when the pressure data is read from the FIFO.
225 static int bm1390_pressure_read(struct bm1390_data *data, u32 *pressure) in bm1390_pressure_read() argument
236 *pressure = (u32)(raw[2] >> 2 | raw[1] << 6 | raw[0] << 14); in bm1390_pressure_read()
311 * pressure in hPa is register value divided by 2048. in bm1390_read_raw()
374 * to read the all pressure value in __bm1390_fifo_flush()
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/linux/mm/
H A Dvmpressure.c3 * Linux VM pressure
41 * These thresholds are used when we account memory pressure through
51 * critical pressure as number of pages will be less than "window size".
111 static enum vmpressure_levels vmpressure_level(unsigned long pressure) in vmpressure_level() argument
113 if (pressure >= vmpressure_level_critical) in vmpressure_level()
115 else if (pressure >= vmpressure_level_med) in vmpressure_level()
124 unsigned long pressure = 0; in vmpressure_calc_level() local
140 pressure = scale - (reclaimed * scale / scanned); in vmpressure_calc_level()
141 pressure = pressure * 10 in vmpressure_calc_level()
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/linux/drivers/input/touchscreen/
H A Dwm831x-ts.c64 bool pressure; member
92 if (wm831x_ts->pressure) in wm831x_ts_data_irq()
139 if (wm831x_ts->pressure) in wm831x_ts_data_irq()
167 if (wm831x_ts->pressure) in wm831x_ts_pen_down_irq()
271 wm831x_ts->pressure = pdata->pressure; in wm831x_ts_probe()
273 wm831x_ts->pressure = true; in wm831x_ts_probe()
281 WARN_ON(pdata->pressure && pdata->fivewire); in wm831x_ts_probe()
282 wm831x_ts->pressure = false; in wm831x_ts_probe()
355 if (wm831x_ts->pressure) in wm831x_ts_probe()
H A Dresistive-adc-touch.c50 bool pressure; member
92 if ((!x && !y) || (st->pressure && (press < st->pressure_min))) { in grts_cb()
101 if (st->pressure) in grts_cb()
171 st->pressure = true; in grts_get_properties()
196 st->pressure = true; in grts_get_properties()
225 if (st->pressure) { in grts_probe()
248 if (st->pressure) in grts_probe()
H A Dmainstone-wm97xx.c85 static int pressure; variable
86 module_param(pressure, int, 0);
87 MODULE_PARM_DESC(pressure, "Pressure readback (1 = pressure, 0 = no pressure)");
143 if (pressure) in wm97xx_acc_pen_down()
H A Dtps6507x-ts.c37 u16 pressure; member
155 &tsc->tc.pressure); in tps6507x_ts_poll()
159 pendown = tsc->tc.pressure > tsc->min_pressure; in tps6507x_ts_poll()
189 input_report_abs(input_dev, ABS_PRESSURE, tsc->tc.pressure); in tps6507x_ts_poll()
H A Dsis_i2c.c177 u8 pressure; in sis_ts_report_contact() local
196 pressure = height = width = 1; in sis_ts_report_contact()
204 pressure = in sis_ts_report_contact()
215 input_report_abs(input, ABS_MT_PRESSURE, pressure); in sis_ts_report_contact()
H A Dpcap_ts.c25 u16 pressure; member
46 pcap_ts->pressure = res[0]; in pcap_ts_read_xy()
67 pcap_ts->pressure); in pcap_ts_read_xy()
H A Dwacom_i2c.c111 unsigned int x, y, pressure; in wacom_i2c_irq() local
126 pressure = le16_to_cpup((__le16 *)&data[8]); in wacom_i2c_irq()
140 input_report_abs(input, ABS_PRESSURE, pressure); in wacom_i2c_irq()
/linux/Documentation/accounting/
H A Dpsi.rst38 respective file in /proc/pressure/ -- cpu, memory, and io.
67 Monitoring for pressure thresholds
71 pressure exceeds certain thresholds.
78 /proc/pressure/ representing the resource to be monitored and write the
85 For example writing "some 150000 1000000" into /proc/pressure/memory
87 1sec time window. Writing "full 50000 1000000" into /proc/pressure/io
142 fds.fd = open("/proc/pressure/memory", O_RDWR | O_NONBLOCK);
144 printf("/proc/pressure/memory open error: %s\n",
151 printf("/proc/pressure/memory write error: %s\n",
182 mounted, pressure stall information is also tracked for tasks grouped
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/linux/tools/testing/selftests/hid/tests/
H A Dtest_wacom_generic.py192 self, x, y, pressure, buttons=None, toolid=None, proximity=None, reportID=None argument
224 report.tippressure = pressure
225 report.tipswitch = pressure > 0
264 def event(self, x, y, pressure, buttons=None, toolid=None, proximity=None): argument
276 r = self.create_report(x, y, pressure, buttons, toolid, proximity)
629 pressure=300,
643 uhdev.event(110, 220, pressure=0),
655 pressure=0,
665 uhdev.event(130, 240, pressure=0), [], auto_syn=False, strict=True
695 pressure=0,
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/linux/Documentation/devicetree/bindings/input/touchscreen/
H A Dbu21029.txt14 - touchscreen-max-pressure: maximum pressure value
31 touchscreen-max-pressure = <4095>;
/linux/drivers/input/tablet/
H A Dkbtab.c36 int pressure; in kbtab_irq() local
67 pressure = data[5]; in kbtab_irq()
69 input_report_abs(dev, ABS_PRESSURE, pressure); in kbtab_irq()
71 input_report_key(dev, BTN_LEFT, pressure > kb_pressure_click ? 1 : 0); in kbtab_irq()
/linux/Documentation/input/
H A Devent-codes.rst152 touchpad may set the value to 1 only when the touch pressure rises above a
257 - For touch devices, many devices converted contact size into pressure.
258 A finger flattens with pressure, causing a larger contact area and thus
259 pressure and contact size are directly related. This is not the case
261 pressure sensor ("pressure pads").
264 pressure is in measurable units. If the resolution is zero, the
265 pressure data is in arbitrary units. If the resolution is non-zero, the
266 pressure data is in units/gram. For example, a value of 10 with a
429 table, and report correct units for the pressure.

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