linux+Qt下声音出不来

hgy1234

我是全能版scp，刷linux+Qt，使用音频播放器，报错：Audio Error initialising audio.  
又刷成Android，用暴风影音，能播出声音。
对比一下两个系统的开机启动信息，关于声卡部分是一致的：
Samsung Audio Subsystem Driver, (c) 2011 Samsung Electronics
audss_init: RCLK SRC[busclk]
asoc: wm8960-hifi <-> samsung-i2s.0 mapping ok
asoc: wm8960-hifi <-> samsung-i2s.0 mapping ok
Samsung SRP driver, (c) 2010 Samsung Electronics
SRP: Driver successfully probed
ALSA device list:
  #0: iTOP-4412-Audio

用户层设备文件
root@android:/etc # ls -l /dev/snd
crw-rw---- system   audio    116,   0 2012-01-01 00:00 controlC0
crw-rw---- system   audio    116,  24 2012-01-01 00:00 pcmC0D0c
crw-rw---- system   audio    116,  16 2012-01-01 00:00 pcmC0D0p
crw-rw---- system   audio    116,  25 2012-01-01 00:00 pcmC0D1c
crw-rw---- system   audio    116,  17 2012-01-01 00:00 pcmC0D1p
crw-rw---- system   audio    116,  33 2012-01-01 00:00 timer

这些都有的，说明linux内核驱动至少应该是没有问题的，应该是驱动上了，
对ALSA不熟，不知道是不是用户层还有什么配置没设置好而导致声音出不来？

topeet_sky

发一下系统启动的打印信息，看一下

hgy1234

[root@iTOP-4412]# dmesg
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 3.0.15 (root@ubuntu) (gcc version 4.4.1 (Sourcery G++ Lite 2009q3-67) ) #4 SMP PREEMPT Tue Nov 12 22:12:32 AMST 2013
[    0.000000] CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=10c5387d
[    0.000000] CPU: VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine: SMDK4X12
[    0.000000] NR_BANKS too low, ignoring high memory
[    0.000000] **************************
[    0.000000] reserve_panic_dump_area!!
[    0.000000] **************************
[    0.000000] Memory policy: ECC disabled, Data cache writealloc
[    0.000000] CPU EXYNOS4412 (id 0xe4412011)
[    0.000000] exynos4_init_clocks: initializing clocks
[    0.000000] S3C24XX Clocks, Copyright 2004 Simtec Electronics
[    0.000000] s3c_register_clksrc: clock audiocdclk has no registers set
[    0.000000] audiocdclk: no parent clock specified
[    0.000000] s3c_register_clksrc: clock armclk has no registers set
[    0.000000] exynos4_setup_clocks: registering clocks
[    0.000000] exynos4_setup_clocks: xtal is 24000000
[    0.000000] EXYNOS4: PLL settings, A=1000000000, M=800000000, E=96000000 V=350000000
[    0.000000] EXYNOS4: ARMCLK=1000000000, DMC=400000000, ACLK200=24000000
[    0.000000] ACLK160=160000000, ACLK133=133333333, ACLK100=100000000
[    0.000000] EXYNOS4: ACLK400=24000000 ACLK266=800000000
[    0.000000] uclk1: source is mout_mpll_user (6), rate is 100000000
[    0.000000] uclk1: source is mout_mpll_user (6), rate is 100000000
[    0.000000] uclk1: source is mout_mpll_user (6), rate is 100000000
[    0.000000] uclk1: source is mout_mpll_user (6), rate is 100000000
[    0.000000] sclk_csis: source is xusbxti (1), rate is 1500000
[    0.000000] sclk_csis: source is xusbxti (1), rate is 1500000
[    0.000000] sclk_cam0: source is xusbxti (1), rate is 1500000
[    0.000000] sclk_cam1: source is xusbxti (1), rate is 1500000
[    0.000000] sclk_fimc: source is xusbxti (1), rate is 1500000
[    0.000000] sclk_fimc: source is xusbxti (1), rate is 1500000
[    0.000000] sclk_fimc: source is xusbxti (1), rate is 1500000
[    0.000000] sclk_fimc: source is xusbxti (1), rate is 1500000
[    0.000000] sclk_fimd: source is xusbxti (1), rate is 1500000
[    0.000000] sclk_fimd: source is xusbxti (1), rate is 1500000
[    0.000000] sclk_mfc: source is mout_mfc0 (0), rate is 200000000
[    0.000000] sclk_g3d: source is mout_g3d0 (0), rate is 41666666
[    0.000000] sclk_pwi: source is xusbxti (1), rate is 1500000
[    0.000000] On node 0 totalpages: 515840
[    0.000000]   Normal zone: 1472 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 186944 pages, LIFO batch:31
[    0.000000]   HighMem zone: 2622 pages used for memmap
[    0.000000]   HighMem zone: 324802 pages, LIFO batch:31
[    0.000000] PERCPU: Embedded 7 pages/cpu @c0d55000 s6272 r8192 d14208 u32768
[    0.000000] pcpu-alloc: s6272 r8192 d14208 u32768 alloc=8*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 511746
[    0.000000] Kernel command line: root=/dev/mmcblk0p2 rootfstype=ext4 init=/linuxrc console=ttySAC2,115200
[    0.000000] log_buf_len: 524288
[    0.000000] early log buf free: 127675(97%)
[    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Memory: 736MB 1279MB = 2015MB total
[    0.000000] Memory: 1654080k/1654080k available, 409280k reserved, 1309696K highmem
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
[    0.000000]     DMA     : 0xfea00000 - 0xffe00000   (  20 MB)
[    0.000000]     vmalloc : 0xee800000 - 0xf6000000   ( 120 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xee000000   ( 736 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .init : 0xc0008000 - 0xc003d000   ( 212 kB)
[    0.000000]       .text : 0xc003d000 - 0xc0868000   (8364 kB)
[    0.000000]       .data : 0xc0868000 - 0xc0909dc0   ( 648 kB)
[    0.000000]        .bss : 0xc090c3d0 - 0xc0945300   ( 228 kB)
[    0.000000] SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000] NR_IRQS:456
[    0.000000] Calibrating delay loop... 1992.29 BogoMIPS (lpj=4980736)
[    0.045000] pid_max: default: 32768 minimum: 301
[    0.045000] Mount-cache hash table entries: 512
[    0.045000] Initializing cgroup subsys debug
[    0.045000] Initializing cgroup subsys cpuacct
[    0.045000] Initializing cgroup subsys freezer
[    0.045000] CPU: Testing write buffer coherency: ok

hgy1234

[    0.045000] **********panic_dump_test****************
[    0.045000] There is no valid panic information in memory
[    0.045000] **************************
[    0.045000] L310 cache controller enabled
[    0.045000] l2x0: 16 ways, CACHE_ID 0x4100c4c8, AUX_CTRL 0x7e470001, Cache size: 1048576 B
[    0.075000] CPU1: Booted secondary processor
[    0.095000] CPU2: Booted secondary processor
[    0.115000] CPU3: Booted secondary processor
[    0.115000] Brought up 4 CPUs
[    0.115000] SMP: Total of 4 processors activated (7969.17 BogoMIPS).
[    0.120000] print_constraints: dummy:
[    0.120000] NET: Registered protocol family 16
[    0.120000] sensor_hw_init: line = 290
[    0.130000] exynos4_pmu_init: PMU supports 4412(96)
[    0.130000] EXYNOS4: Initializing architecture
[    0.130000] panic_file create OK !!
[    0.130000] samsung-pd samsung-pd.0: power domain registered
[    0.130000] samsung-pd samsung-pd.1: power domain registered
[    0.130000] samsung-pd samsung-pd.2: power domain registered
[    0.130000] samsung-pd samsung-pd.5: power domain registered
[    0.130000] samsung-pd samsung-pd.4: power domain registered
[    0.130000] samsung-pd samsung-pd.6: power domain registered
[    0.130000] samsung-pd samsung-pd.7: power domain registered
[    0.130000] s3c24xx-pwm s3c24xx-pwm.1: tin at 100000000, tdiv at 100000000, tin=divclk, base 8
[    0.130000] UMP: UMP device driver  loaded
[    0.145000] bio: create slab <bio-0> at 0
[    0.150000] SCSI subsystem initialized
[    0.150000] usbcore: registered new interface driver usbfs
[    0.150000] usbcore: registered new interface driver hub
[    0.150000] usbcore: registered new device driver usb
[    0.150000] i2c-gpio i2c-gpio.0: using pins 42 (SDA) and 43 (SCL)
[    0.150000] +s5m8767_pmic_probe()
[    0.150000] print_constraints: vdd_mif range: 900 <--> 1100 mV at 1100 mV
[    0.155000] print_constraints: vdd_arm range: 850 <--> 1450 mV at 1200 mV
[    0.155000] print_constraints: vdd_int range: 875 <--> 1200 mV at 1000 mV
[    0.155000] print_constraints: vdd_g3d range: 750 <--> 1500 mV at 1100 mV
[    0.155000] print_constraints: vdd_m12 range: 750 <--> 1500 mV at 1200 mV
[    0.155000] print_constraints: vdd12_5m range: 750 <--> 1500 mV at 1200 mV
[    0.155000] print_constraints: vddf28_emmc range: 750 <--> 3000 mV at 2850 mV
[    0.160000] print_constraints: VDDQ_M12: 1500 mV
[    0.160000] print_constraints: VDD18_2M: 1800 mV
[    0.160000] print_constraints: VDD10_MIPI: 1000 mV
[    0.165000] print_constraints: VDD33_LCD: 3300 mV
[    0.165000] print_constraints: VDD18_MIPI: 1800 mV
[    0.165000] print_constraints: VDD33_UOTG: 3300 mV
[    0.170000] print_constraints: VDD10_USH: 1000 mV
[    0.170000] print_constraints: VDD18_HSIC: 1800 mV
[    0.170000] print_constraints: DC33V_TP: 3300 mV
[    0.175000] print_constraints: VDD28_CAM: 2800 mV
[    0.175000] print_constraints: VDD28_AF: 2800 mV
[    0.175000] print_constraints: VDDA28_2M: 2800 mV
[    0.180000] print_constraints: VDD28_TF: 2800 mV
[    0.180000] print_constraints: VDD33_A31: 3300 mV
[    0.180000] print_constraints: VDD18_CAM: 1800 mV
[    0.185000] print_constraints: VDD18_A31: 1800 mV
[    0.185000] print_constraints: GPS_1V8: 1800 mV
[    0.185000] print_constraints: DVDD12: 1200 mV
[    0.190000] -s5m8767_pmic_probe()
[    0.190000] s5m87xx 1-0066: S5M87xx MFD probe done!!!
[    0.190000] s3c-i2c s3c2440-i2c.1: i2c-1: S3C I2C adapter
[    0.190000] s3c-i2c s3c2440-i2c.3: i2c-3: S3C I2C adapter
[    0.190000] s3c-i2c s3c2440-i2c.4: i2c-4: S3C I2C adapter
[    0.190000] s3c-i2c s3c2440-i2c.5: i2c-5: S3C I2C adapter
[    0.190000] s3c-i2c s3c2440-i2c.6: i2c-6: S3C I2C adapter
[    0.190000] s3c-i2c s3c2440-i2c.7: i2c-7: S3C I2C adapter
[    0.190000] Advanced Linux Sound Architecture Driver Version 1.0.24.
[    0.190000] Bluetooth: Core ver 2.16
[    0.190000] NET: Registered protocol family 31
[    0.190000] Bluetooth: HCI device and connection manager initialized
[    0.190000] Bluetooth: HCI socket layer initialized
[    0.190000] Bluetooth: L2CAP socket layer initialized
[    0.190000] Bluetooth: SCO socket layer initialized
[    0.190000] Switching to clocksource mct-frc
[    0.191713] NET: Registered protocol family 2
[    0.191787] Switched to NOHz mode on CPU #0
[    0.191921] IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.192014] Switched to NOHz mode on CPU #3
[    0.192021] Switched to NOHz mode on CPU #2
[    0.192027] Switched to NOHz mode on CPU #1
[    0.192524] TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
[    0.194024] TCP bind hash table entries: 65536 (order: 7, 786432 bytes)
[    0.194828] TCP: Hash tables configured (established 131072 bind 65536)
[    0.194845] TCP reno registered
[    0.194859] UDP hash table entries: 512 (order: 2, 16384 bytes)
[    0.194896] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[    0.195175] NET: Registered protocol family 1
[    0.195331] Trying to unpack rootfs image as initramfs...
[    0.235818] Freeing initrd memory: 680K
[    0.235912] PMU: registered new PMU device of type 0
[    0.236079] Exynos4 : ARM Clock down on idle mode is enabled
[    0.236957] regulator_consumer_probe: loading tc4-regulator-consumer
[    0.236977]  Register vdd_consumer_early_suspend done
[    0.237587] Loaded driver for PL330 DMAC-0 s3c-pl330
[    0.237603]  DBUFF-64x8bytes Num_Chans-8 Num_Peri-1 Num_Events-32
[    0.237959] Loaded driver for PL330 DMAC-1 s3c-pl330
[    0.237975]  DBUFF-32x4bytes Num_Chans-8 Num_Peri-32 Num_Events-32
[    0.238075] Loaded driver for PL330 DMAC-2 s3c-pl330
[    0.238090]  DBUFF-32x4bytes Num_Chans-8 Num_Peri-32 Num_Events-32
[    0.256488] highmem bounce pool size: 64 pages
[    0.256677] ashmem: initialized
[    0.264986] fuse init (API version 7.16)
[    0.265339] msgmni has been set to 673
[    0.265955] io scheduler noop registered
[    0.265969] io scheduler deadline registered
[    0.266026] io scheduler cfq registered (default)
[    0.271684]
[    0.271688]  CPU type:
[    0.271699]  Exynos 4412
[    0.281911] FIMD src sclk = 800000000
[    0.281926] parent clock: 800000000, vclk: 65475000, vclk div: 12

hgy1234

[    0.281949] (s3cfb_backlight_on, 304): VLED_ON
[    0.286966] (s3cfb_backlight_on, 327): LCD_PWM_ON
[    0.291978] (s3cfb_backlight_on, 347): TP1_EN_ON
[    0.296994] s3cfb s3cfb.0: registered successfully
[    0.297319] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    0.595269] s5pv210-uart.0: ttySAC0 at MMIO 0x13800000 (irq = 16) is a S3C6400/10
[    0.680059] s5pv210-uart.1: ttySAC1 at MMIO 0x13810000 (irq = 20) is a S3C6400/10
[    0.760057] s5pv210-uart.2: ttySAC2 at MMIO 0x13820000 (irq = 24) is a S3C6400/10
[    1.739447] console [ttySAC2] enabled
[    1.785059] s5pv210-uart.3: ttySAC3 at MMIO 0x13830000 (irq = 28) is a S3C6400/10
[    1.865982] SI GPS Initialize
[    1.867735] max485_ctl Initialize
[    1.877060] brd: module loaded
[    1.881699] loop: module loaded
[    1.883391] pmem: 0 init
[    1.886188] pmem_gpu1: 0 init
[    1.889481] i2c i2c-5: mpu_probe: 0
[    1.892316] i2c i2c-5: mpu_probe: irq:379
[    1.896306] <6>mldl_cfg:Reset MPU6050 B1
[    1.922667] mldl_cfg:Force to use default sensitivity(131,16384)
[    1.931320] i2c i2c-5: Installing irq using 379
[    1.934372] i2c i2c-5: Module Param interface = mpuirq
[    1.939765] i2c i2c-5: inv_mpu_register_slave: +mpu6050 Type 1: Addr: 68 IRQ: 379, Adapt:  5
[    1.948369] i2c i2c-5: Installing accelirq irq using 379
[    1.953363] i2c i2c-5: mpu_probe: init successfully.
[    1.958260] i2c-core: driver [mpu6050B1] using legacy suspend method
[    1.964503] i2c-core: driver [mpu6050B1] using legacy resume method
[    1.970758] mpu_init: Probe name mpu6050B1
[    1.975595] smsc911x: Driver version 2008-10-21
[    1.980735] smsc911x-mdio: probed
[    1.982698] smsc911x smsc911x: eth0: attached PHY driver [Generic PHY] (mii_bus:phy_addr=ffffffff:01, irq=-1)
[    1.992794] smsc911x smsc911x: eth0: MAC Address: 00:80:00:23:45:67
[    1.999014] usbcore: registered new interface driver dm9601
[    2.004505] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    2.010858] ehci_hcd: block sizes: qh 64 qtd 96 itd 160 sitd 96
[    2.010952]
[    2.010955]
[    2.010957]  [usb_host_phy_init]++++++++++++++
[    2.018235] [XJ] cp -> ap wakeup host: 1
[    2.022271] s5p-ehci s5p-ehci: reset hcs_params 0x1313 dbg=0 cc=1 pcc=3 ordered ports=3
[    2.022295] s5p-ehci s5p-ehci: reset hcc_params 2a016 thresh 1 uframes 256/512/1024 park LPM
[    2.022317] s5p-ehci s5p-ehci: S5P EHCI Host Controller
[    2.027360] s5p-ehci s5p-ehci: new USB bus registered, assigned bus number 1
[    2.034447] s5p-ehci s5p-ehci: park 0
[    2.034460] s5p-ehci s5p-ehci: support lpm
[    2.034487] s5p-ehci s5p-ehci: irq 134, io mem 0x12580000
[    2.039768] s5p-ehci s5p-ehci: reset command 0080b02  park=3 ithresh=8 period=1024 Reset HALT
[    2.039796] s5p-ehci s5p-ehci: init command 0010005 (park)=0 ithresh=1 period=512 RUN
[    2.045041] s5p-ehci s5p-ehci: USB 0.0 started, EHCI 1.00
[    2.049034] usb usb1: default language 0x0409
[    2.049063] usb usb1: udev 1, busnum 1, minor = 0
[    2.049078] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice=0300
[    2.057140] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    2.064341] usb usb1: New USB device Class: Class=9, SubClass=0, Protocol=0
[    2.071285] usb usb1: Product: S5P EHCI Host Controller
[    2.076492] usb usb1: Manufacturer: Linux 3.0.15 ehci_hcd
[    2.081873] usb usb1: SerialNumber: s5p-ehci
[    2.086403] usb usb1: usb_probe_device
[    2.086420] usb usb1: configuration #1 chosen from 1 choice
[    2.086451] usb usb1: adding 1-0:1.0 (config #1, interface 0)
[    2.086618] hub 1-0:1.0: usb_probe_interface
[    2.086633] hub 1-0:1.0: usb_probe_interface - got id
[    2.086649] hub 1-0:1.0: USB hub found
[    2.089855] hub 1-0:1.0: 3 ports detected
[    2.093854] hub 1-0:1.0: standalone hub
[    2.093867] hub 1-0:1.0: individual port power switching
[    2.093882] hub 1-0:1.0: individual port over-current protection
[    2.093898] hub 1-0:1.0: power on to power good time: 20ms
[    2.093920] hub 1-0:1.0: local power source is good
[    2.093935] hub 1-0:1.0: enabling power on all ports
[    2.094439] usbcore: registered new interface driver cdc_acm
[    2.099494] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[    2.107479] Initializing USB Mass Storage driver...
[    2.112468] usbcore: registered new interface driver usb-storage
[    2.118330] USB Mass Storage support registered.
[    2.123159] usbcore: registered new interface driver usbserial
[    2.128746] usbserial: USB Serial Driver core
[    2.133220] mousedev: could not register psaux device, error: -16
[    2.139161] mousedev: PS/2 mouse device common for all mice
[    2.145265] input: gpio-keys as /devices/platform/gpio-keys/input/input0
[    2.151982] input: samsung-keypad as /devices/platform/samsung-keypad/input/input1
[    2.159304] usbcore: registered new interface driver xpad
[    2.164440] usbcore: registered new interface driver usb_acecad
[    2.170236] acecad: v3.2:USB Acecad Flair tablet driver
[    2.175547] usbcore: registered new interface driver aiptek
[    2.180999] aiptek: v2.3 (May 2, 2007):Aiptek HyperPen USB Tablet Driver (Linux 2.6.x)
[    2.188896] aiptek: Bryan W. Headley/Chris Atenasio/Cedric Brun/Rene van Paassen
[    2.196308] s5p-ehci s5p-ehci: GetStatus port:3 status 001803 0  ACK POWER sig=j CSC CONNECT
[    2.196332] hub 1-0:1.0: port 3: status 0501 change 0001
[    2.196463] usbcore: registered new interface driver gtco
[    2.201658] GTCO usb driver version: 2.00.0006
[    2.206013] usbcore: registered new interface driver hanwang
[    2.211829] usbcore: registered new interface driver kbtab
[    2.217195] kbtab: v0.0.2:USB KB Gear JamStudio Tablet driver
[    2.223028] usbcore: registered new interface driver wacom
[    2.228392] wacom: v1.52:USB Wacom tablet driver
[    2.233753] S3C24XX RTC, (c) 2004,2006 Simtec Electronics
[    2.238459] s3c_rtc_gettime() 2112-1-1 0:11:12
[    2.242809] s3c_rtc_gettime() 2112-1-1 0:11:12
[    2.247552] using rtc device, s3c, for alarms
[    2.251412] s3c-rtc s3c64xx-rtc: rtc core: registered s3c as rtc0
[    2.260536] s5m_rtc_read_time: 2012/1/1 0:11:13(0)
[    2.264939] s5m_rtc_read_alarm: 2000/0/1 0:0:0(-1)
[    2.270156] s5m_rtc_read_time: 2012/1/1 0:11:13(0)
[    2.273632] s5m-rtc s5m-rtc: rtc core: registered s5m-rtc as rtc1
[    2.279950] s5m-rtc s5m-rtc: RTC CHIP NAME: s5m-rtc
[    2.284517] i2c /dev entries driver
[    2.288933] Linux media interface: v0.10
[    2.292097] lirc_dev: IR Remote Control driver registered, major 252

hgy1234

[    2.298243] IR NEC protocol handler initialized
[    2.298255] hub 1-0:1.0: state 7 ports 3 chg 0008 evt 0000
[    2.298283] hub 1-0:1.0: port 3, status 0501, change 0000, 480 Mb/s
[    2.302753] IR RC5(x) protocol handler initialized
[    2.307508] IR RC6 protocol handler initialized
[    2.312022] IR JVC protocol handler initialized
[    2.316535] IR Sony protocol handler initialized
[    2.321135] IR RC5 (streamzap) protocol handler initialized
[    2.326690] IR LIRC bridge handler initialized
[    2.331117] Linux video capture interface: v2.00
[    2.335811] v4l2_i2c_drv_init: SR200PC20 called
[    2.340975] s3c-csis: Samsung MIPI-CSIS0 driver probed successfully
[    2.346508] s3c-csis: Samsung MIPI-CSIS1 driver probed successfully
[    2.350170] s5p-ehci s5p-ehci: port 3 high speed
[    2.350185] s5p-ehci s5p-ehci: GetStatus port:3 status 001005 0  ACK POWER sig=se0 PE CONNECT
[    2.352857] Initialize JPEG driver
[    2.356348] s5p-jpeg s5p-jpeg: JPEG driver is registered to /dev/video12
[    2.362939] s5p-jpeg s5p-jpeg: JPEG driver is registered to /dev/video11
[    2.369663] i2c i2c-0: attached s5p_ddc into i2c adapter successfully
[    2.376004] i2c-core: driver [s5p_ddc] using legacy suspend method
[    2.382072] i2c-core: driver [s5p_ddc] using legacy resume method
[    2.388150] S5P HPD Driver, (c) 2009 Samsung Electronics
[    2.393805] S5P CEC Driver, (c) 2009 Samsung Electronics
[    2.399539] MFC(Multi Function Codec - FIMV v5.x) registered successfully
[    2.405044] usb 1-3: new high speed USB device number 2 using s5p-ehci
[    2.412466] Samsung Graphics 2D driver, (c) 2011 Samsung Electronics
[    2.418810] Mali: init_mali_clock mali_clock c0882b04
[    2.426177] Mali: failed to get cpufreq level for 1200MHzMali: Mali device driver  loaded
[    2.443440] S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics
[    2.449432] s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq enabled
[    2.457493] device-mapper: uevent: version 1.0.3
[    2.461719] device-mapper: ioctl: 4.20.0-ioctl (2011-02-02) initialised: dm-devel@redhat.com
[    2.465170] s5p-ehci s5p-ehci: port 3 high speed
[    2.465186] s5p-ehci s5p-ehci: GetStatus port:3 status 001005 0  ACK POWER sig=se0 PE CONNECT
[    2.469859] Bluetooth: HCI UART driver ver 2.2
[    2.474249] Bluetooth: HCI H4 protocol initialized
[    2.479018] Bluetooth: HCI BCSP protocol initialized
[    2.483965] Bluetooth: HCILL protocol initialized
[    2.488652] Bluetooth: HCIATH3K protocol initialized
[    2.494092] cpuidle: using governor ladder
[    2.498579] cpuidle: using governor menu
[    2.501690] mshci: Mobile Storage Host Controller Interface driver
[    2.507748] mshci: Copyright (c) 2011 Samsung Electronics Co., Ltd
[    2.513993] clock source 0: sclk_dwmci (160000000 Hz)
[    2.518956] dw_mmc dw_mmc: clock source 0: sclk_dwmci (160000000 Hz)
[    2.525551] mmc0: Version ID 0x5342240a.
[    2.529177] mjdbg: cmu_max_clcok:800000000
[    2.533269] mjdbg: host->max_clk: 800000000
[    2.537651] mmc0: FIFO WMARK FOR RX 0x11 WX 0x1. ###########
[    2.545486] mmc0: MSHCI controller on samsung-mshci [dw_mmc] using IDMA
[    2.550831] usb 1-3: udev 2, busnum 1, minor = 1
[    2.550847] usb 1-3: New USB device found, idVendor=0424, idProduct=3503, bcdDevice=a1a0
[    2.558713] usb 1-3: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    2.560031] sdhci: Secure Digital Host Controller Interface driver
[    2.560038] sdhci: Copyright(c) Pierre Ossman
[    2.560132] s3c-sdhci s3c-sdhci.2: clock source 0: sclk_mmc (10666666 Hz)
[    2.560183] mmc1: no vmmc regulator found
[    2.560371] mmc1: SDHCI controller on samsung-hsmmc [s3c-sdhci.2] using ADMA
[    2.560383] wake enabled for irq 359
[    2.597900] s3c-sdhci s3c-sdhci.3: clock source 0: sclk_mmc (10666666 Hz)
[    2.598718] mmc0:mshci_set_clock, 400000@ration:4,11[mjdbg] cmu_set_clock: 400000
[    2.598808] usb 1-3: New USB device Class: Class=9, SubClass=0, Protocol=2
[    2.599084] usb 1-3: usb_probe_device
[    2.599094] usb 1-3: configuration #1 chosen from 1 choice
[    2.599225] usb 1-3: adding 1-3:1.0 (config #1, interface 0)
[    2.599388] hub 1-3:1.0: usb_probe_interface
[    2.599396] hub 1-3:1.0: usb_probe_interface - got id
[    2.599405] hub 1-3:1.0: USB hub found
[    2.599571] hub 1-3:1.0: 3 ports detected
[    2.599578] hub 1-3:1.0: standalone hub
[    2.599584] hub 1-3:1.0: ganged power switching
[    2.599590] hub 1-3:1.0: global over-current protection
[    2.599735] hub 1-3:1.0: TT per port
[    2.599744] hub 1-3:1.0: TT requires at most 8 FS bit times (666 ns)
[    2.599751] hub 1-3:1.0: power on to power good time: 0ms
[    2.599941] hub 1-3:1.0: local power source is good
[    2.599949] hub 1-3:1.0: no over-current condition exists
[    2.599957] hub 1-3:1.0: enabling power on all ports
[    2.610045] *******mmc0: inserted!!!!!******
[    2.610853] mmc0: cmd 52 response timeout error
[    2.613703] mmc0: cmd 52 response timeout error
[    2.624823] mmc0: cmd 8 response timeout error
[    2.627670] mmc0: cmd 5 response timeout error
[    2.629474] mmc0: cmd 5 response timeout error
[    2.631277] mmc0: cmd 5 response timeout error
[    2.633079] mmc0: cmd 5 response timeout error
[    2.635940] mmc0: cmd 55 response timeout error
[    2.638785] mmc0: cmd 55 response timeout error
[    2.641645] mmc0: cmd 55 response timeout error
[    2.644490] mmc0: cmd 55 response timeout error
[    2.680047] mmc2: no vmmc regulator found
[    2.684114] mmc2: SDHCI controller on samsung-hsmmc [s3c-sdhci.3] using ADMA
[    2.696441] usbcore: registered new interface driver usbhid
[    2.698793] mmc0:mshci_set_clock, 50000000@ration:4,11[mjdbg] cmu_set_clock: 50000000
[    2.703081] hub 1-3:1.0: port 2: status 0101 change 0001
[    2.708384] usbhid: USB HID core driver
[    2.709552] mmc0: new high speed DDR MMC card at address 0001
[    2.709881] mmcblk0: mmc0:0001 MAG2WA 14.5 GiB
[    2.711930]  mmcblk0: p1 p2 p3 p4
[    2.727157] Samsung Audio Subsystem Driver, (c) 2011 Samsung Electronics
[    2.732465] audss_init: RCLK SRC[busclk]
[    2.755064] *******mmc1: inserted!!!!!******
[    2.800051] usb 1-3: link qh256-0001/d60e21c0 start 1 [1/0 us]
[    2.800089] hub 1-3:1.0: state 7 ports 3 chg 0004 evt 0000
[    2.801234] hub 1-3:1.0: port 2, status 0101, change 0000, 12 Mb/s
[    2.816157] hub 1-3:1.0: port 2 not reset yet, waiting 10ms
[    2.852992] asoc: wm8960-hifi <-> samsung-i2s.0 mapping ok
[    2.860177] asoc: wm8960-hifi <-> samsung-i2s.0 mapping ok
[    2.866188] Samsung SRP driver, (c) 2010 Samsung Electronics
[    2.874549] mmc1: new high speed SDHC card at address aaaa
[    2.878917] mmcblk1: mmc1:aaaa SL16G 14.8 GiB
[    2.885252] usb 1-3.2: new full speed USB device number 3 using s5p-ehci
[    2.890636]  mmcblk1: p1
[    2.898740] SRP: Driver successfully probed
[    2.901634] ALSA device list:
[    2.904396]   #0: iTOP-4412-Audio
[    2.907843] GACT probability NOT on
[    2.911185] Mirror/redirect action on
[    2.914813] u32 classifier
[    2.917527]     Actions configured
[    2.920906] Netfilter messages via NETLINK v0.30.
[    2.925065] *******mmc2: inserted!!!!!******
[    2.929908] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[    2.936745] ctnetlink v0.93: registering with nfnetlink.
[    2.941287] NF_TPROXY: Transparent proxy support initialized, version 4.1.0
[    2.948175] NF_TPROXY: Copyright (c) 2006-2007 BalaBit IT Ltd.
[    2.954247] xt_time: kernel timezone is -0000
[    2.959824] ip_tables: (C) 2000-2006 Netfilter Core Team
[    2.963936] arp_tables: (C) 2002 David S. Miller
[    2.968365] TCP cubic registered
[    2.972402] NET: Registered protocol family 10
[    2.979849] Mobile IPv6
[    2.980871] ip6_tables: (C) 2000-2006 Netfilter Core Team

hgy1234

[    2.986221] usb 1-3.2: ep0 maxpacket = 8
[    2.986466] IPv6 over IPv4 tunneling driver
[    2.992069] usb 1-3.2: skipped 1 descriptor after interface
[    2.992088] usb 1-3.2: skipped 1 descriptor after interface
[    2.992312] usb 1-3.2: default language 0x0409
[    2.993069] usb 1-3.2: udev 3, busnum 1, minor = 2
[    2.993086] usb 1-3.2: New USB device found, idVendor=046d, idProduct=c52e, bcdDevice=2301
[    2.999893] usb 1-3.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    3.000079] *******mmc2: inserted!!!!!******
[    3.002342] NET: Registered protocol family 17
[    3.002371] NET: Registered protocol family 15
[    3.020376] usb 1-3.2: New USB device Class: Class=0, SubClass=0, Protocol=0
[    3.020411] Bluetooth: RFCOMM TTY layer initialized
[    3.020424] Bluetooth: RFCOMM socket layer initialized
[    3.020431] Bluetooth: RFCOMM ver 1.11
[    3.020438] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    3.020444] Bluetooth: BNEP filters: protocol multicast
[    3.020469] NET: Registered protocol family 35
[    3.020754] EXYNOS4X12: Adaptive Support Voltage init
[    3.020762] EXYNOS4X12(SG):  ORIG : 2 MOD : 0 RESULT : 2
[    3.020768] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[    3.069222] usb 1-3.2: Product: USB Receiver
[    3.069230] usb 1-3.2: Manufacturer: Logitech
[    3.069508] usb 1-3.2: usb_probe_device
[    3.069520] usb 1-3.2: configuration #1 chosen from 1 choice
[    3.070322] usb 1-3.2: adding 1-3.2:1.0 (config #1, interface 0)
[    3.070531] usbhid 1-3.2:1.0: usb_probe_interface
[    3.070539] usbhid 1-3.2:1.0: usb_probe_interface - got id
[    3.072451] input: Logitech USB Receiver as /devices/platform/s5p-ehci/usb1/1-3/1-3.2/1-3.2:1.0/input/input2
[    3.072496] usb 1-3.2: link qh8-0e01/d48f00c0 start 2 [1/2 us]
[    3.072694] generic-usb 0003:046D:C52E.0001: input: USB HID v1.11 Keyboard [Logitech USB Receiver] on usb-s5p-ehci-3.2/input0
[    3.072756] usb 1-3.2: adding 1-3.2:1.1 (config #1, interface 1)
[    3.072952] usbhid 1-3.2:1.1: usb_probe_interface
[    3.072960] usbhid 1-3.2:1.1: usb_probe_interface - got id
[    3.076211] input: Logitech USB Receiver as /devices/platform/s5p-ehci/usb1/1-3/1-3.2/1-3.2:1.1/input/input3
[    3.076525] generic-usb 0003:046D:C52E.0002: input: USB HID v1.11 Mouse [Logitech USB Receiver] on usb-s5p-ehci-3.2/input1
[    3.124541] Registering SWP/SWPB emulation handler
[    3.129236] DVFS : VDD_ARM Voltage table set with 2 Group
[    3.135108] *******mmc2: inserted!!!!!******
[    3.167662] exynos4_pm_hotplug_device_init: 0
[    3.170622] EXYNOS4 PM-hotplug init function
[    3.177816] regulator_init_complete: DC33V_TP: incomplete constraints, leaving on
[    3.185125] regulator_init_complete: VDD18_2M: incomplete constraints, leaving on
[    3.194028] regulator_init_complete: vdd_int range: incomplete constraints, leaving on
[    3.200906] regulator_init_complete: vdd_arm range: incomplete constraints, leaving on
[    3.208385] *******mmc2: inserted!!!!!******
[    3.213066] regulator_init_complete: vdd_mif range: incomplete constraints, leaving on
[    3.220576] ==ft5x0x_ts_init: reset==
[    3.470370] input: ft5x0x_ts as /devices/virtual/input/input4
[    3.480567] ft5x0x_ts 3-0038: Firmware version 0xa6
[    3.483970] ft5x0x_ts 3-0038: FocalTech ft5x0x TouchScreen initialized
[    3.491672] s5m_rtc_read_time: 2012/1/1 0:11:14(0)
[    3.495264] s3c_rtc_settime() 2012-1-1 0:11:14
[    3.499684] s5m_rtc_set_time: 2012/1/1 0:11:14(0)
[    3.530059] s5m-rtc s5m-rtc: setting system clock to 2012-01-01 00:11:14 UTC (1325376674)
[    3.536831] ctrl->mem.size = 0x5000000
[    3.536841] ctrl->mem.base = 0x638f4000
[    3.537070] FIMC0 registered successfully
[    3.540812] ctrl->mem.size = 0x2000000
[    3.540821] ctrl->mem.base = 0x5bff4000
[    3.540968] FIMC1 registered successfully
[    3.544790] ctrl->mem.size = 0x2000000
[    3.544799] ctrl->mem.base = 0x618f4000
[    3.544953] FIMC2 registered successfully
[    3.548793] ctrl->mem.size = 0x3900000
[    3.548802] ctrl->mem.base = 0x5dff4000
[    3.548949] FIMC3 registered successfully
[    3.552876] S5P TVOUT Driver v3.0 (c) 2010 Samsung Electronics
[    3.585894] *************************************
[    3.589116] SMM6260 Modem support for iTOP-4412
[    3.593639]  www.topeetboard.com
[    3.596850] *************************************
[    3.601606]
[    3.601609] ---smm6260_cfg(): finish
[    3.606685] wake enabled for irq 372
[    3.610330] s5p_ehci_power: EHCI turns off
[    3.610345] smm6260_set_active_state: AP>>CP:   ACTIVE_STATE:0,0
[    3.616124] smm_modem smm_modem: AP>>CP:     SLAV_WUP:0,0
[    3.621154] ---the first time simple enumeration for c2c
[    3.626658] Freeing init memory: 212K
[    3.654276] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts:
[    4.025156] s3c_rtc_gettime() 2112-1-1 0:11:14
[    4.099176] smsc911x smsc911x: eth0: MAC Address: 08:90:90:90:90:90
[    4.115032] smsc911x smsc911x: eth0: SMSC911x/921x identified at 0xefc60000, IRQ: 358
[    4.463067] usb 1-3.2: link qh2-0e01/d48e3a40 start 1 [1/2 us]
[   15.060018] eth0: no IPv6 routers present
[   62.560332] failed to copy MFC F/W during init

hgy1234

测试
[root@iTOP-4412]# speaker-test -t wav
或者
[root@iTOP-4412]# aplay -t wav /usr/local/arm-alsa/share/sounds/alsa/Front_Right.wav
是能够播出声音的。

可是，Qt界面下的音乐播放器还是在打开mp3时报错：Error initialising audio.

嚓，难不成还得去研究一下音乐播放器的源码。。。。

topeet_sky

我记得在/etc/init.d/rcS里面有配置声卡的命令：
amixer cset numid=5 127
amixer cset numid=6 1
amixer cset numid=30 8,0
amixer cset numid=40 1
amixer cset numid=43 1
amixer cset numid=47 1系统启动的时候在串口会有amix的信息打印出来，你看下你的板子有没有

hgy1234

这个配置/etc/init.d/rcS里有的。

根据Qt的错误信息，层层往上追查，现在追到AudioDevice:pen()

        qtopia-free-2.2.0/qtopia/src/libraries/mediaplayer/audiodevice_qss.cpp
        AudioDevicePrivate::AudioDevicePrivate()
        {
                connect( &c, SIGNAL(error(int)), this, SLOT(error(int)) );
        }

        void AudioDevice:pen()
        {
                d = new AudioDevicePrivate(this, f, chs, bps, needCompletedSignal);

                connect(d, SIGNAL(deviceOpenError()), this, SIGNAL(deviceOpenError()));
        }
           \|/
        qtopia-free-2.2.0/qtopia/src/libraries/mediaplayer/audiodevice_qss.cpp
        void AudioDevicePrivate::error()        void AudioDevicePrivate::deviceError()
        {
                emit deviceOpenError();
        }
           \|/
        qtopia-free-2.2.0/qtopia/src/libraries/mediaplayer/loopcontrol.cpp
           LoopControl:oopControl()
        {
                connect(audioDevice, SIGNAL(deviceOpenError()), this, SLOT(audioDeviceError()));
        }
           \|/
        qtopia-free-2.2.0/qtopia/src/libraries/mediaplayer/loopcontrol.cpp
        void LoopControl::audioDeviceError()
        {       
                QMessageBox::critical(0, tr("Audio Error"), tr("<qt>Error initialising audio.</qt>"));
        }