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/linux/Documentation/userspace-api/media/dvb/
H A Dfrontend-stat-properties.rst64 measurement was not complete yet.
70 measurement for power (actually, 0 to 65535).
83 measurement was not complete yet.
88 measurement for Signal/Noise (actually, 0 to 65535).
103 In order to get the BER (Bit Error Rate) measurement, it should be
107 This measurement is monotonically increased, as the frontend gets more
114 measurement was not complete yet.
128 measurement was taken.
130 It should be noted that this measurement can be smaller than the total
132 manually restart the measurement, losing some data between each
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/linux/Documentation/hwmon/
H A Dadm9240.rst52 microprocessor-based systems, providing measurement and limit comparison
59 measurement.
68 The measurement cycle
70 The adm9240 driver will take a measurement reading no faster than once
72 measurement update rate and will receive cached data from the most
73 recent measurement.
75 ADM9240 has a very fast 320us temperature and voltage measurement cycle
76 with independent fan speed measurement cycles counting alternating rising
79 DS1780 measurement cycle is about once per second including fan speed.
81 LM81 measurement cycle is about once per 400ms including fan speed.
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H A Dda9052.rst26 Channel 0 VDDOUT - measurement of the system voltage
27 Channel 1 ICH - internal battery charger current measurement
29 Channel 3 VBAT - measurement of the battery voltage
36 Channel 9 VBBAT - measurement of the backup battery voltage
/linux/security/integrity/ima/
H A DKconfig2 # IBM Integrity Measurement Architecture
5 bool "Integrity Measurement Architecture(IMA)"
19 Measurement Architecture(IMA) maintains a list of hash
36 bool "Enable carrying the IMA measurement list across a soft boot"
41 a TPM's quote after a soft boot, the IMA measurement list of the
44 Depending on the IMA policy, the measurement list can grow to
54 measurement list. If unsure, use the default 10.
67 Select the default IMA measurement template.
69 The original 'ima' measurement list template contains a
71 limited to 255 characters. The 'ima-ng' measurement lis
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H A Dima_kexec.c111 * notifiers, suspending measurement before dump, and forbidding in ima_dump_measurement_list()
152 * image for the measurement list for the next kernel. in ima_add_kexec_buffer()
191 pr_err("Binary measurement list too large.\n"); in ima_add_kexec_buffer()
197 pr_err("Not enough memory for the kexec measurement buffer.\n"); in ima_add_kexec_buffer()
207 pr_err("Error passing over kexec measurement buffer.\n"); in ima_update_kexec_buffer()
218 kexec_dprintk("kexec measurement buffer for the loaded kernel at 0x%lx.\n", in ima_update_kexec_buffer()
223 * Called during kexec execute so that IMA can update the measurement list. in ima_update_kexec_buffer()
290 * Restore the measurement list from the previous kernel. in ima_load_kexec_buffer()
304 pr_err("Failed to restore the measurement list: %d\n",
310 pr_debug("Restoring the measurement lis in ima_validate_range()
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H A Dima_api.c92 * to an ordered list of measurement entries maintained inside the kernel,
94 * configured TPM PCR) over the hashes of the current list of measurement
97 * Applications retrieve the current kernel-held measurement list through
100 * and is used to validate the measurement list.
129 * ima_add_violation - add violation to measurement list.
131 * Violations are flagged in the measurement list with zero hash values.
224 * the verity digest to be included in the measurement list. A in ima_get_verity_digest()
234 * ima_collect_measurement - collect file measurement
237 * storing the measurement and i_version in the iint.
263 * measurement rul in ima_collect_measurement()
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H A Dima_queue.c14 * The measurement list is append-only. No entry is
60 /* mutex protects atomicity of extending and staging measurement list in ima_lookup_digest_entry()
163 * - Add template entry to the measurement list and hash table, for
235 * Add template entry to the measurement list and hash table, and in ima_measurements_suspend()
238 * On systems which support carrying the IMA measurement list across in ima_measurements_suspend()
256 * Avoid appending to the measurement log when the TPM subsystem has
303 * not empty, and measurement is not suspended, move the measurements from the
307 * Do not allow staging after measurement is suspended, so that dumping
358 * Refuse to delete staged measurements if measurement is suspended, so that
416 * Refuse to delete current measurements if measurement i
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/linux/Documentation/misc-devices/
H A Dbh1770glc.rst46 so that measurement produces about the expected lux value.
71 RW - measurement rate in Hz
74 RO - supported measurement rates
119 RW - Measurement rate (in Hz) when the level is above threshold
123 RW - Measurement rate (in Hz) when the level is below threshold
127 RO - Supported proximity measurement rates in Hz
/linux/arch/s390/include/uapi/asm/
H A Dcmb.h8 * struct cmbdata - channel measurement block data for user space
26 * the extended channel measurement facility (first shipped in
47 /* enable channel measurement */
49 /* enable channel measurement */
51 /* read channel measurement data */
/linux/drivers/s390/cio/
H A Dcmf.c3 * Linux on zSeries Channel Measurement Facility support
62 * enum cmb_format - types of supported measurement block formats
64 * @CMF_BASIC: traditional channel measurement blocks supported
79 * format - actual format for all measurement blocks
92 * one instance of struct cmb_operations because the format of the measurement
95 * @alloc: allocate memory for a channel measurement block,
98 * @set: enable or disable measurement
99 * @read: read a measurement entry at an index
100 * @readall: read a measurement block in a common format
101 * @reset: clear the data in the associated measurement block and
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/linux/drivers/iio/chemical/
H A Dscd30.h15 /* start continuous measurement with pressure compensation */
17 /* stop continuous measurement */
19 /* set/get measurement interval */
21 /* check whether new measurement is ready */
23 /* get measurement */
H A Dscd4x.c106 * Measurement needs to be stopped before sending commands. in scd4x_send_command()
115 /* execution time for stopping measurement */ in scd4x_send_command()
143 * Measurement needs to be stopped before sending commands. in scd4x_read()
144 * Except for reading measurement and data ready command. in scd4x_read()
152 /* execution time for stopping measurement */ in scd4x_read()
175 /* start measurement */ in scd4x_read()
198 /* measurement needs to be stopped before sending commands */ in scd4x_write()
212 /* start measurement, except for forced calibration command */ in scd4x_write()
265 * on error try to start the measurement, in scd4x_write_and_fetch()
266 * puts sensor back into continuous measurement in scd4x_write_and_fetch()
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/linux/net/mac80211/
H A Dspectmgmt.c403 skb = dev_alloc_skb(IEEE80211_MIN_ACTION_SIZE(measurement) + in ieee80211_send_refuse_measurement_request()
409 msr_report = skb_put_zero(skb, IEEE80211_MIN_ACTION_SIZE(measurement)); in ieee80211_send_refuse_measurement_request()
419 msr_report->u.action.measurement.dialog_token = dialog_token; in ieee80211_send_refuse_measurement_request()
420 msr_report->u.action.measurement.element_id = WLAN_EID_MEASURE_REPORT; in ieee80211_send_refuse_measurement_request()
421 msr_report->u.action.measurement.length = in ieee80211_send_refuse_measurement_request()
423 msr_report->u.action.measurement.msr_elem.token = request_ie->token; in ieee80211_send_refuse_measurement_request()
424 msr_report->u.action.measurement.msr_elem.mode |= in ieee80211_send_refuse_measurement_request()
426 msr_report->u.action.measurement.msr_elem.type = request_ie->type; in ieee80211_send_refuse_measurement_request()
436 * Ignoring measurement request is spec violation. in ieee80211_process_measurement_req()
440 * TODO: Answer basic measurement as unmeasured in ieee80211_process_measurement_req()
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/linux/lib/
H A Ddhry.h29 * - strcpy, strcmp (inside the measurement loop)
30 * - printf, scanf (outside the measurement loop)
32 * are used for execution time measurement. For measurements
53 * compiler; Dhrystone itself performs no OS calls in the measurement loop.
91 * Inside the measurement loop, this version follows the
95 * but within the measurement loop only in branches that
97 * should be prevented from moving code out of the measurement
99 * that are executed within the measurement loop have NOT been
107 * measurement loop overhead in a correct way, the loop check
112 * All changes within the measurement loop are described
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/linux/include/linux/
H A Dwm97xx.h38 #define WM97XX_POLL 0x8000 /* initiate a polling measurement */
39 #define WM97XX_ADCSEL_X 0x1000 /* x coord measurement */
40 #define WM97XX_ADCSEL_Y 0x2000 /* y coord measurement */
41 #define WM97XX_ADCSEL_PRES 0x3000 /* pressure measurement */
74 #define WM9712_PIL 0x0100 /* current used for pressure measurement. set 400uA else 200uA */
91 #define WM9705_PIL 0x0080 /* current used for pressure measurement. set 400uA else 200uA */
101 #define WM9713_POLL 0x0200 /* initiate a polling measurement */
103 #define WM9713_ADCSEL_X 0x0002 /* X measurement */
104 #define WM9713_ADCSEL_Y 0x0004 /* Y measurement */
105 #define WM9713_ADCSEL_PRES 0x0008 /* Pressure measurement */
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H A Dtsm-mr.h9 * struct tsm_measurement_register - describes an architectural measurement
18 * tsm_measurements to detail the measurement facility supported by the
55 * struct tsm_measurements - defines the CC architecture specific measurement
56 * facility and methods for updating measurement registers (MRs)
/linux/tools/power/x86/turbostat/
H A Dturbostat.852 'delta' shows the difference in values during the measurement interval.
73 'delta' shows the difference in values during the measurement interval.
116 \fB--interval seconds\fP overrides the default 5.0 second measurement interval.
118 \fB--num_iterations num\fP number of the measurement iterations.
146 \fBTime_Of_Day_Seconds\fP For each CPU, the gettimeofday(2) value (seconds.subsec since Epoch) when the counters ending the measurement interval were collected. This column is disabled by default, and can be enabled with "--enable Time_Of_Day_Seconds" or "--debug". On the summary row, Time_Of_Day_Seconds refers to the timestamp following collection of counters on the last CPU.
156 \fBBusy%\fP percent of the measurement interval that the CPU executes instructions, aka. % of time in "C0" state.
162 \fBIRQ\fP The number of interrupts serviced by that CPU during the measurement interval. The system total line is the sum of interrupts serviced across all CPUs. turbostat parses /proc/interrupts to generate this summary.
164 \fBSMI\fP The number of System Management Interrupts serviced CPU during the measurement interval. While this counter is actually per-CPU, SMI are triggered on all processors, so the number should be the same for all CPUs.
174 \fBC1, C2, C3...\fP The number times Linux requested the C1, C2, C3 idle state during the measurement interval. The system summary line shows the sum for all CPUs. These are C-state names as exported in /sys/devices/system/cpu/cpu*/cpuidle/state*/name. While their names are generic, their attributes are processor specific. They the system description section of output shows what MWAIT sub-states they are mapped to on each system. These counters are in the "cpuidle" group, which is disabled, by default.
176 \fBC1+, C2+, C3+...\fP The idle governor idle state misprediction statistics. Indicates the number times Linux requested the C1, C2, C3 idle state during the measurement interva
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/linux/Documentation/input/devices/
H A Dcma3000_d0x.rst17 CMA3000 Tri-axis accelerometer supports Motion detect, Measurement and
24 Measurement Mode:
112 1: 100 Hz Measurement mode
113 2: 400 Hz Measurement mode
114 3: 40 Hz Measurement mode
/linux/tools/testing/selftests/kvm/lib/x86/
H A Dsev.c106 void sev_vm_launch_measure(struct kvm_vm *vm, u8 *measurement) in sev_vm_launch_measure() argument
112 launch_measure.uaddr = (__u64)measurement; in sev_vm_launch_measure()
177 void vm_sev_launch(struct kvm_vm *vm, u64 policy, u8 *measurement) in vm_sev_launch() argument
193 if (!measurement) in vm_sev_launch()
194 measurement = alloca(256); in vm_sev_launch()
196 sev_vm_launch_measure(vm, measurement); in vm_sev_launch()
/linux/Documentation/devicetree/bindings/iio/magnetometer/
H A Dti,tmag5273.yaml19 on-axis and off-axis angle measurement topologies. The angle calculation is
32 ti,angle-measurement:
35 Enables angle measurement in the selected plane.
71 ti,angle-measurement = "x-z";
/linux/drivers/dpll/zl3073x/
H A Dcore.c619 /* Request to update phase offsets measurement values */ in zl3073x_ref_phase_offsets_update()
634 * @type: measurement type (ZL_REF_FREQ_MEAS_CTRL_*)
636 * The function waits for the previous measurement to finish, selects all
637 * references and requests a new measurement of the given type.
646 /* Wait for previous measurement to finish */ in zl3073x_ref_freq_meas_latch()
653 /* Select all references for measurement */ in zl3073x_ref_freq_meas_latch()
663 /* Request measurement */ in zl3073x_ref_freq_meas_latch()
747 /* Read DPLL phase measurement control register */ in zl3073x_dev_phase_avg_factor_set()
755 /* Update phase measurement control register */ in zl3073x_dev_phase_avg_factor_set()
768 * zl3073x_dev_phase_meas_setup - setup phase offset measurement
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/linux/Documentation/ABI/testing/
H A Dsysfs-devices-virtual-misc-tdx_guest6 Value of a TDX measurement register (MR). MRNAME and HASH above
17 https://docs.kernel.org/driver-api/coco/measurement-registers.html
51 (RO) MRTD - Measurement of the initial contents of the TD.
58 (RW) RTMR[0123] - 4 Run-Time extendable Measurement Registers.
/linux/drivers/gpib/
H A DKconfig88 tristate "Measurement Computing compatible boards"
95 Enable support for Measurement Computing (Computer Boards):
114 Measurement Computing (Computer Boards)
206 measurement computing boards and Ines boards.
231 Measurement Computing ISA-GPIB-PCA2
/linux/drivers/iio/temperature/
H A Dmlx90632.c60 #define MLX90632_EE_MEDICAL_MEAS1 0x24E1 /* Medical measurement 1 16bit */
61 #define MLX90632_EE_MEDICAL_MEAS2 0x24E2 /* Medical measurement 2 16bit */
62 #define MLX90632_EE_EXTENDED_MEAS1 0x24F1 /* Extended measurement 1 16bit */
63 #define MLX90632_EE_EXTENDED_MEAS2 0x24F2 /* Extended measurement 2 16bit */
64 #define MLX90632_EE_EXTENDED_MEAS3 0x24F3 /* Extended measurement 3 16bit */
87 /* Measurement types */
91 /* Measurement type select*/
135 #define MLX90632_MEAS_MAX_TIME 2000 /* Max measurement time in ms for the lowest refresh rate */
140 * @lock: Internal mutex for multiple reads for single measurement
143 * @mtyp: Measurement type physical sensor configuration for extended range
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/linux/drivers/crypto/intel/qat/qat_common/
H A Dadf_clock.c107 * If the measurement result will go beyond the min/max thresholds the value
111 * timestamp. So we can't expect too high accuracy from this measurement.
114 * * 0 - measurement succeed
115 * * -ETIMEDOUT - measurement failed

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