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Searched refs:dB (Results 1 – 18 of 18) sorted by relevance

/linux/drivers/iio/amplifiers/
H A DKconfig21 ADRF5702: 0.125 dB LSB, 8-Bit, Silicon Digital Attenuator
22 ADRF5703: 0.25 dB LSB, 7-Bit, Silicon Digital Attenuator
23 ADRF5720: 0.5 dB LSB, 6-Bit, Silicon Digital Attenuator
24 ADRF5730: 0.5 dB LSB, 6-Bit, Silicon Digital Attenuator
25 ADRF5731: 2 dB LSB, 4-Bit, Silicon Digital Attenuator
26 HMC271A: 1dB LSB 5-Bit Digital Attenuator SMT
27 HMC792A 0.25 dB LSB GaAs MMIC 6-Bit Digital Attenuator
28 HMC1018A: 1.0 dB LSB GaAs MMIC 5-BIT Digital Attenuator
29 HMC1019A: 0.5 dB LSB GaAs MMIC 5-BIT Digital Attenuator
30 HMC1119 0.25 dB LSB, 7-Bit, Silicon Digital Attenuator
/linux/arch/m68k/include/asm/
H A Datarihw.h753 #define MW_LM1992_VOLUME(dB) \ argument
754 (0x0c0 | ((dB) < -80 ? 0 : (dB) > 0 ? 40 : (((dB) + 80) / 2)))
755 #define MW_LM1992_BALLEFT(dB) \ argument
756 (0x140 | ((dB) < -40 ? 0 : (dB) > 0 ? 20 : (((dB) + 40) / 2)))
757 #define MW_LM1992_BALRIGHT(dB) \ argument
758 (0x100 | ((dB) < -40 ? 0 : (dB) > 0 ? 20 : (((dB) + 40) / 2)))
759 #define MW_LM1992_TREBLE(dB) \ argument
760 (0x080 | ((dB) < -12 ? 0 : (dB) > 12 ? 12 : (((dB) / 2) + 6)))
761 #define MW_LM1992_BASS(dB) \ argument
762 (0x040 | ((dB) < -12 ? 0 : (dB) > 12 ? 12 : (((dB) / 2) + 6)))
/linux/sound/usb/
H A Dmixer_maps.c18 const struct usbmix_dB_map *dB; member
114 { 10, /* "Mic Capture", */ NULL, 2, .dB = &mp3plus_dB_2 },
117 { 11, "Line Capture", .dB = &mp3plus_dB_2 },
120 { 13, /* "Mic Playback", */ .dB = &mp3plus_dB_1 },
122 { 14, "Line Playback", .dB = &mp3plus_dB_1 }, /* FU, default Speaker */
333 /* Bose companion 5, the dB conversion factor is 16 instead of 256 */
336 { 3, NULL, .dB = &bose_companion5_dB },
340 /* Bose Revolve+ SoundLink, correction of dB maps */
343 { 2, NULL, .dB = &bose_soundlink_dB },
348 * Razer Barracuda X 2.4: Firmware reports cval->min = -16800 in 1/256 dB unit
[all...]
H A Dmixer.c136 if (!p || p->name || p->dB) in check_ignored_ctl()
145 if (p && p->dB) { in check_mapped_dB()
146 cval->dBmin = p->dB->min; in check_mapped_dB()
147 cval->dBmax = p->dB->max; in check_mapped_dB()
148 cval->min_mute = p->dB->min_mute; in check_mapped_dB()
/linux/Documentation/ABI/testing/
H A Dconfigfs-usb-gadget-uac114 (in 1/256 dB)
16 (in 1/256 dB)
18 (in 1/256 dB)
25 (in 1/256 dB)
27 (in 1/256 dB)
29 (in 1/256 dB)
H A Dconfigfs-usb-gadget-uac217 (in 1/256 dB)
19 (in 1/256 dB)
21 (in 1/256 dB)
30 (in 1/256 dB)
32 (in 1/256 dB)
34 (in 1/256 dB)
/linux/Documentation/sound/codecs/
H A Dtas675x.rst52 :Default: 0 dB
53 :Range: -15.5 dB to 0 dB (0.5 dB steps)
70 :Default: 0 dB
71 :Range: -103 dB to 0 dB (0.5 dB steps)
87 :Description: dB change per update during mute.
89 :Default: 0.5dB
90 :Options: 4dB, 2dB, 1dB, 0.5dB
105 :Description: dB change per update during unmute.
107 :Default: 0.5dB
108 :Options: 4dB, 2dB, 1dB, 0.5dB
/linux/Documentation/networking/device_drivers/atm/
H A Dcxacru.rst43 * downstream_attenuation (dB)
46 * downstream_snr_margin (dB)
50 * upstream_attenuation (dB)
53 * upstream_snr_margin (dB)
/linux/Documentation/admin-guide/media/
H A Dsi476x.rst54 0x06 smattn Soft mute attenuation level in dB
101 0x06 pgagain PGA gain in dB
102 0x07 fmwblang FM/WB LNA Gain in dB
140 0x16 snr Signed RF SNR in dB
/linux/Documentation/devicetree/bindings/scsi/
H A Dhisilicon-sas.txt59 values' range is 7600 to 12400, and used to represent -24dB to
60 24dB.
62 means 4.78dB.
/linux/Documentation/userspace-api/media/dvb/
H A Dfrontend-stat-properties.rst33 the measure (dB measures) and ``uvalue`` is for unsigned values
43 1/1000 dB
85 - ``FE_SCALE_DECIBEL`` - Signal/Noise ratio is in 0.001 dB units.
/linux/Documentation/devicetree/bindings/sound/
H A Dcs42l56.txt45 …- cirrus,hpf-left-freq, hpf-right-freq : Sets the corner frequency (-3dB point) for the internal H…
/linux/Documentation/userspace-api/media/v4l/
H A Dext-ctrls-fm-tx.rst121 Sets the gain for audio compression feature. It is a dB value. The
125 Sets the threshold level for audio compression feature. It is a dB
/linux/Documentation/driver-api/media/drivers/
H A Dvidtv.rst382 Lock (0x1f) Signal= -34.45dBm C/N= 33.74dB UCB= 0
402 …Lock (0x1f) Quality= Good Signal= -34.66dBm C/N= 33.41dB UCB= 0 postBER= 0 preBER= 1.05x10^-3 PE…
403 …Lock (0x1f) Quality= Good Signal= -34.57dBm C/N= 33.46dB UCB= 0 postBER= 0 preBER= 1.05x10^-3 PE…
406 …Lock (0x1f) Quality= Good Signal= -34.42dBm C/N= 33.89dB UCB= 0 postBER= 0 preBER= 2.44x10^-3 PE…
/linux/drivers/usb/atm/
H A Dcxacru.c517 CXACRU_ATTR_##_action(CXINF_UPSTREAM_SNR_MARGIN, dB, upstream_snr_margin); \
518 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_SNR_MARGIN, dB, downstream_snr_margin); \
519 CXACRU_ATTR_##_action(CXINF_UPSTREAM_ATTENUATION, dB, upstream_attenuation); \
520 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_ATTENUATION, dB, downstream_attenuation); \
/linux/Documentation/sound/designs/
H A Dcontrol-names.rst115 Mic Boost [(?dB)]
/linux/Documentation/sound/cards/
H A Demu-mixer.rst80 name='DAC1 0202 14dB PAD',index=0, etc.
84 name='ADC1 14dB PAD 0202',index=0, etc.
/linux/Documentation/sound/
H A Dalsa-configuration.rst2384 control value is mapped to voltage (instead of dB) level linearly.
2386 ``V(x) = k * x``; ``dB(x) = 20 * log10(x)``. Overrides bit 24