>Synopsis: azalia(4): no sound on Dell Latitude E5440
>Category: kernel audio
>Environment:
System : OpenBSD 5.5
Details : OpenBSD 5.5-current (GENERIC.MP) #72: Tue Apr 15 10:51:03
MDT 2014
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
Architecture: OpenBSD.amd64
Machine : amd64
>Description:
Just installed -current on a Dell Latitude E5440; I can't play any
sound,
but audio works with Windows 7 on the same machine.
For example, mplayer blocks when I try to play a WAV file, and the
following
kernel debug message appears:
azalia_trigger_input: can't record without an ADC
dmesg with AZALIA_DEBUG, mixerctl -av and audioctl included below.
>How-To-Repeat:
Boot the machine and try to play audio.
>Fix:
Unknown.
dmesg (with AZALIA_DEBUG):
OpenBSD 5.5-current (GENERIC.MP) #0: Sun Apr 20 20:09:40 CEST 2014
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 8474574848 (8081MB)
avail mem = 8240250880 (7858MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xecac0 (100 entries)
bios0: vendor Dell Inc. version "A05" date 02/20/2014
bios0: Dell Inc. Latitude E5440
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP APIC FPDT LPIT SSDT SSDT SSDT SSDT HPET SSDT MCFG ASF!
acpi0: wakeup devices PXSX(S4) RP01(S4) PXSX(S4) RP02(S4) PXSX(S4) RP03(S4)
PXSX(S4) RP04(S4) PXSX(S4) RP05(S4) PXSX(S4) RP06(S4) PXSX(S4) RP07(S4)
PXSX(S4) RP08(S4) [...]
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz, 2295.06 MHz
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.2.4, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz, 2294.68 MHz
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 1 (application processor)
cpu2: Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz, 2294.68 MHz
cpu2:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID
cpu2: 256KB 64b/line 8-way L2 cache
cpu2: smt 1, core 0, package 0
cpu3 at mainbus0: apid 3 (application processor)
cpu3: Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz, 2294.68 MHz
cpu3:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID
cpu3: 256KB 64b/line 8-way L2 cache
cpu3: smt 1, core 1, package 0
ioapic0 at mainbus0: apid 8 pa 0xfec00000, version 20, 40 pins
acpihpet0 at acpi0: 14318179 Hz
acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus 1 (RP01)
acpiprt2 at acpi0: bus 2 (RP04)
acpiprt3 at acpi0: bus 3 (RP05)
acpiprt4 at acpi0: bus -1 (PEG0)
acpiprt5 at acpi0: bus -1 (PEG1)
acpiprt6 at acpi0: bus -1 (PEG2)
acpiec0 at acpi0
acpicpu0 at acpi0: C1, PSS
acpicpu1 at acpi0: C1, PSS
acpicpu2 at acpi0: C1, PSS
acpicpu3 at acpi0: C1, PSS
acpitz0 at acpi0: critical temperature is 107 degC
acpibtn0 at acpi0: LID0
acpibtn1 at acpi0: PBTN
acpibtn2 at acpi0: SBTN
acpiac0 at acpi0: AC unit offline
acpibat0 at acpi0: BAT0 model "DELL RRNJ133" serial 1651 type LION oem "SMP"
acpibat1 at acpi0: BAT1 not present
acpivideo0 at acpi0: GFX0
acpivout0 at acpivideo0: LCD_
cpu0: Enhanced SpeedStep 2295 MHz: speeds: 2301, 2300, 2200, 2100, 2000, 1800,
1700, 1600, 1500, 1400, 1300, 1200, 1000, 900, 800, 759 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 4G Host" rev 0x09
vga1 at pci0 dev 2 function 0 "Intel HD Graphics" rev 0x09
intagp0 at vga1
agp0 at intagp0: aperture at 0xe0000000, size 0x10000000
inteldrm0 at vga1
drm0 at inteldrm0
error: [drm:pid0:i915_write32] *ERROR* Unknown unclaimed register before
writing to 100000
error: [drm:pid0:intel_dp_set_link_train] *ERROR* Timed out waiting for DP idle
patterns
error: [drm:pid0:i915_write32] *ERROR* Unknown unclaimed register before
writing to 64040
inteldrm0: 1366x768
wsdisplay0 at vga1 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
azalia0 at pci0 dev 3 function 0 "Intel Core 4G HD Audio" rev 0x09: msi
azalia_reset: resetting
azalia_reset: reset counter = 5000
azalia_reset: reset counter = 5000
azalia0: host: High Definition Audio rev. 1.0
azalia0: host: 2 output, 0 input, and 0 bidi streams
azalia0: found a codec at #0
azalia_init_corb: CORB allocation succeeded.
azalia_init_corb: CORBWP=0; size=256
azalia_init_rirb: RIRB allocation succeeded.
azalia_init_rirb: RIRBRP=0, size=256
azalia0: RIRB time out
azalia0: No codecs found
azalia_pci_detach
azalia_pci_detach: delete streams
azalia_pci_detach: delete codecs
azalia_pci_detach: delete CORB and RIRB
azalia_pci_detach: disable interrupts
azalia_pci_detach: clear interrupts
azalia_pci_detach: delete PCI resources
"Intel 8 Series xHCI" rev 0x04 at pci0 dev 20 function 0 not configured
"Intel 8 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured
em0 at pci0 dev 25 function 0 "Intel I218-LM" rev 0x04: msi, address XXX
azalia1 at pci0 dev 27 function 0 "Intel 8 Series HD Audio" rev 0x04: msi
azalia_reset: resetting
azalia_reset: reset counter = 4999
azalia_reset: reset counter = 4985
azalia1: host: High Definition Audio rev. 1.0
azalia1: host: 4 output, 4 input, and 0 bidi streams
azalia1: found a codec at #0
azalia_init_corb: CORB allocation succeeded.
azalia_init_corb: CORBWP=0; size=256
azalia_init_rirb: RIRB allocation succeeded.
azalia_init_rirb: RIRBRP=0, size=256
azalia1: codec[0] vid 0x10ec0292, subid 0x05de1028, rev. 0.1, HDA version 1.0
azalia1: nidstart=1 #functions=1
azalia_codec_init: FTYPE result = 0x00000101
azalia_codec_init: There are 35 widgets in the audio function.
encodings=1<PCM>
PCM
formats=e05f0<24bit,20bit,16bit,192kHz,96kHz,88.2kHz,48kHz,44.1kHz,32kHz>
inamp: mute=0 size=0 steps=0 offset=0
outamp: mute=0 size=0 steps=0 offset=0
gpio: wake=0 unsol=1 gpis=0 gpos=0 gpios=5
azalia1: dac02 wcap=41d<POWER,FORMATOV,AMPOV,OUTAMP,STEREO>
encodings=1<PCM>
PCM formats=e0560<24bit,20bit,16bit,192kHz,96kHz,48kHz,44.1kHz>
outamp: mute=0 size=2 steps=87 offset=87
azalia1: dac03 wcap=41d<POWER,FORMATOV,AMPOV,OUTAMP,STEREO>
encodings=1<PCM>
PCM formats=e0560<24bit,20bit,16bit,192kHz,96kHz,48kHz,44.1kHz>
outamp: mute=0 size=2 steps=87 offset=87
azalia1: vendor04 wcap=f00000
azalia1: vendor05 wcap=f00000
azalia1: dac06 wcap=611<POWER,DIGITAL,FORMATOV,STEREO>
encodings=1<PCM>
PCM
formats=e05f0<24bit,20bit,16bit,192kHz,96kHz,88.2kHz,48kHz,44.1kHz,32kHz>
azalia1: vendor07 wcap=f00000
azalia1: adc08 wcap=10051b<POWER,CONNLIST,FORMATOV,AMPOV,INAMP,STEREO>
encodings=1<PCM>
PCM formats=e0560<24bit,20bit,16bit,192kHz,96kHz,48kHz,44.1kHz>
inamp: mute=1 size=2 steps=63 offset=23
connections=0x23; selected=0x23
azalia1: adc09 wcap=10051b<POWER,CONNLIST,FORMATOV,AMPOV,INAMP,STEREO>
encodings=1<PCM>
PCM formats=e0560<24bit,20bit,16bit,192kHz,96kHz,48kHz,44.1kHz>
inamp: mute=1 size=2 steps=63 offset=23
connections=0x22; selected=0x22
azalia1: vendor0a wcap=f00000
azalia1: mix0b wcap=20010b<CONNLIST,AMPOV,INAMP,STEREO>
inamp: mute=1 size=5 steps=31 offset=23
connections=0x18,0x19,0x1a,0x1b,0x1d; selected=0x18
azalia1: mix0c wcap=20010b<CONNLIST,AMPOV,INAMP,STEREO>
inamp: mute=1 size=0 steps=0 offset=0
connections=0x2,0xb; selected=0x2
azalia1: mix0d wcap=20010b<CONNLIST,AMPOV,INAMP,STEREO>
inamp: mute=1 size=0 steps=0 offset=0
connections=0x3,0xb; selected=0x3
azalia1: vendor0e wcap=f00000
azalia1: mix0f wcap=20010a<CONNLIST,AMPOV,INAMP>
inamp: mute=1 size=0 steps=0 offset=0
connections=0x2,0x3; selected=0x2
azalia1: vendor10 wcap=f00000
azalia1: vendor11 wcap=f00000
azalia1: black12 wcap=40040b<POWER,AMPOV,INAMP,STEREO>
cap=20<INPUT>
[15/00] color=black device=spkr conn=none conntype=1/8
location=rear chassis=external special=none
inamp: mute=0 size=47 steps=3 offset=0
azalia1: black13 wcap=40040b<POWER,AMPOV,INAMP,STEREO>
cap=20<INPUT>
[15/00] color=black device=spkr conn=none conntype=1/8
location=rear chassis=external special=none
inamp: mute=0 size=47 steps=3 offset=0
azalia1: unknown14 wcap=40058d<POWER,CONNLIST,UNSOL,AMPOV,OUTAMP,STEREO>
cap=10010<EAPD,OUTPUT>
[01/00] color=unknown device=spkr conn=fixed conntype=analog
location=n/a chassis=internal special=none
outamp: mute=1 size=0 steps=0 offset=0
connections=0xc,0xd; selected=0xc
azalia1: green15 wcap=40058d<POWER,CONNLIST,UNSOL,AMPOV,OUTAMP,STEREO>
cap=1001c<EAPD,OUTPUT,HEADPHONE,PRESENCE>
[01/15] color=green device=hp conn=jack conntype=1/8
location=front chassis=external special=none
outamp: mute=1 size=0 steps=0 offset=0
connections=0xc,0xd; selected=0xc
azalia1: green16 wcap=40058d<POWER,CONNLIST,UNSOL,AMPOV,OUTAMP,STEREO>
cap=1001c<EAPD,OUTPUT,HEADPHONE,PRESENCE>
[02/00] color=green device=line conn=jack conntype=1/8
location=rear chassis=external special=none
outamp: mute=1 size=0 steps=0 offset=0
connections=0xc,0xd; selected=0xc
azalia1: vendor17 wcap=f00000
azalia1: black18 wcap=40058f<POWER,CONNLIST,UNSOL,AMPOV,OUTAMP,INAMP,STEREO>
cap=3734<VREF100,VREF80,VREFGND,VREF50,VREFHIZ,INPUT,OUTPUT,PRESENCE>
[15/00] color=black device=spkr conn=none conntype=1/8
location=rear chassis=external special=none
inamp: mute=0 size=39 steps=3 offset=0
outamp: mute=1 size=0 steps=0 offset=0
connections=0xc,0xd; selected=0xc
azalia1: black19 wcap=40048b<POWER,UNSOL,AMPOV,INAMP,STEREO>
cap=24<INPUT,PRESENCE>
[15/00] color=black device=spkr conn=none conntype=1/8
location=rear chassis=external special=none
inamp: mute=0 size=47 steps=3 offset=0
azalia1: black1a wcap=40048b<POWER,UNSOL,AMPOV,INAMP,STEREO>
cap=3724<VREF100,VREF80,VREFGND,VREF50,VREFHIZ,INPUT,PRESENCE>
[15/00] color=black device=spkr conn=none conntype=1/8
location=rear chassis=external special=none
inamp: mute=0 size=39 steps=3 offset=0
azalia1: black1b wcap=40058f<POWER,CONNLIST,UNSOL,AMPOV,OUTAMP,INAMP,STEREO>
cap=3734<VREF100,VREF80,VREFGND,VREF50,VREFHIZ,INPUT,OUTPUT,PRESENCE>
[15/00] color=black device=spkr conn=none conntype=1/8
location=rear chassis=external special=none
inamp: mute=0 size=39 steps=3 offset=0
outamp: mute=1 size=0 steps=0 offset=0
connections=0xc,0xd; selected=0xc
azalia1: vendor1c wcap=f00000
azalia1: unknown1d wcap=400400<POWER>
cap=20<INPUT>
[00/01] color=unknown device=modem-handset conn=none conntype=unknown
location=n/a chassis=external special=none
azalia1: black1e wcap=400781<POWER,DIGITAL,CONNLIST,UNSOL,STEREO>
cap=14<OUTPUT,PRESENCE>
[15/00] color=black device=spkr conn=none conntype=1/8
location=rear chassis=external special=none
connections=0x6; selected=0x6
azalia1: vendor1f wcap=f00000
azalia1: vendor20 wcap=f00040<PROC>
azalia1: vendor21 wcap=f00000
azalia1: sel22 wcap=300101<CONNLIST,STEREO>
connections=0x18,0x19,0x1a,0x1b,0x1d,0xb,0x12,0x13; selected=0x18
azalia1: sel23 wcap=300101<CONNLIST,STEREO>
connections=0x18,0x19,0x1a,0x1b,0x1d,0xb; selected=0x18
azalia1: vendor24 wcap=f00000
azalia_codec_sort_pins: analog out pins: 0x15->0x02 0x16->0x02
azalia_codec_sort_pins: digital out pins:
azalia_codec_sort_pins: analog in pins:
azalia_codec_sort_pins: digital in pins:
azalia1: dacgroup[0]: 02 03
azalia1: codecs: Realtek ALC292
audio0 at azalia1
ppb0 at pci0 dev 28 function 0 "Intel 8 Series PCIE" rev 0xe4: msi
pci1 at ppb0 bus 1
sdhc0 at pci1 dev 0 function 0 vendor "O2 Micro", unknown product 0x8520 rev
0x01: apic 8 int 16
sdmmc0 at sdhc0
ppb1 at pci0 dev 28 function 3 "Intel 8 Series PCIE" rev 0xe4: msi
pci2 at ppb1 bus 2
"Atheros AR9485" rev 0x01 at pci2 dev 0 function 0 not configured
ppb2 at pci0 dev 28 function 4 "Intel 8 Series PCIE" rev 0xe4: msi
pci3 at ppb2 bus 3
ehci0 at pci0 dev 29 function 0 "Intel 8 Series USB" rev 0x04: apic 8 int 21
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
pcib0 at pci0 dev 31 function 0 "Intel 8 Series LPC" rev 0x04
ahci0 at pci0 dev 31 function 2 "Intel 8 Series AHCI" rev 0x04: msi, AHCI 1.3
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 1 lun 0: <ATA, ST500LT012-1DG14, 0001> SCSI3 0/direct
fixed naa.5000c50073643652
sd0: 476940MB, 512 bytes/sector, 976773168 sectors
cd0 at scsibus1 targ 2 lun 0: <PLDS, DVD+-RW DU-8A5HH, SD12> ATAPI 5/cdrom
removable
ichiic0 at pci0 dev 31 function 3 "Intel 8 Series SMBus" rev 0x04: apic 8 int 17
iic0 at ichiic0
iic0: addr 0x29 07=ff 0f=33 10=02 11=95 12=9b 13=55 14=b1 15=31 16=27 17=1d
18=1f 19=b2 1a=70 1b=84 1c=c0 1e=20 20=7f 22=40 25=40 27=ff 29=02 2b=00 2d=44
2f=20 30=95 31=25 32=0e 33=16 87=ff 8f=33 90=02 91=95 92=9b 93=55 94=b1 95=31
96=27 97=1d 98=1f 99=b2 9a=70 9b=84 9c=c0 9e=20 a0=7f a2=40 a5=40 a7=ff a9=01
ab=fe ad=40 af=20 b0=95 b1=25 b2=0e b3=16 words 00=0000 01=0000 02=0000 03=0000
04=0000 05=0000 06=0000 07=ffff
spdmem0 at iic0 addr 0x50: 4GB DDR3 SDRAM PC3-12800 SO-DIMM
spdmem1 at iic0 addr 0x52: 4GB DDR3 SDRAM PC3-12800 SO-DIMM
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
uhub1 at uhub0 port 1 "Intel Rate Matching Hub" rev 2.00/0.04 addr 2
uhub2 at uhub1 port 8 "Standard Microsystems product 0x2514" rev 2.00/2.23 addr
3
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (7626e0d4fcee0ad1.a) swap on sd0b dump on sd0b
mixerctl -av:
inputs.dac-0:1=126,126
inputs.dac-2:3=126,126
inputs.mix_source=dac-0:1 { dac-0:1 }
inputs.mix2_source=dac-2:3 { dac-2:3 }
inputs.mix3_source=dac-0:1,dac-2:3 { dac-0:1 dac-2:3 }
outputs.spkr_source=mix2 [ mix mix2 ]
outputs.spkr_mute=off [ off on ]
outputs.spkr_eapd=on [ off on ]
outputs.hp_source=mix [ mix mix2 ]
outputs.hp_mute=off [ off on ]
outputs.hp_boost=off [ off on ]
outputs.hp_eapd=on [ off on ]
outputs.line_source=mix [ mix mix2 ]
outputs.line_mute=off [ off on ]
outputs.line_boost=off [ off on ]
outputs.line_eapd=on [ off on ]
outputs.hp_sense=unplugged [ unplugged plugged ]
outputs.line_sense=unplugged [ unplugged plugged ]
outputs.spkr_muters=hp,line { hp line }
outputs.master=126,126
outputs.master.mute=off [ off on ]
outputs.master.slaves=dac-0:1,dac-2:3,spkr,hp,line { dac-0:1 dac-2:3 spkr hp
line }
audioctl:
name=HD-Audio
version=1.0
config=azalia1
encodings=slinear_le:16:2:1,slinear_le:20:4:1,slinear_le:24:4:1
properties=full_duplex,independent
full_duplex=0
fullduplex=0
blocksize=9600
hiwat=6
lowat=4
output_muted=0
monitor_gain=0
mode=
play.rate=48000
play.channels=2
play.precision=16
play.bps=2
play.msb=1
play.encoding=slinear_le
play.gain=126
play.balance=32
play.port=0x0
play.avail_ports=0x0
play.seek=0
play.samples=0
play.eof=0
play.pause=0
play.error=0
play.waiting=0
play.open=0
play.active=0
play.buffer_size=65536
play.block_size=9600
play.errors=0
record.rate=48000
record.channels=2
record.precision=16
record.bps=2
record.msb=1
record.encoding=slinear_le
record.gain=127
record.balance=32
record.port=0x0
record.avail_ports=0x0
record.seek=0
record.samples=0
record.eof=0
record.pause=0
record.error=0
record.waiting=0
record.open=0
record.active=0
record.buffer_size=65536
record.block_size=9600
record.errors=0
