Hi, Alsa n00b here starting to bring up alsa on an embedded platform: openWRT for the Broadcom mips processor used in wireless routers, I have a Netgear WGT634U. http://www.openwrt.org 2.6.17 kernel, alsa-lib-1.0.13, alsa-utils-1.0.13, CMedia USB sound dongle. My error is: root@OpenWrt:~# aplay -l **** List of PLAYBACK Hardware Devices **** ALSA lib control.c:910:(snd_ctl_open_noupdate) Invalid CTL hw:0 aplay: device_list:231: control open (0): No such file or directory My /dev and /proc trees look ok (I think!): root@OpenWrt:~# ls /dev/snd controlC0 pcmC0D0c pcmC0D0p timer root@OpenWrt:~# ls /proc/asound card0 default hwdep oss timers cards devices modules pcm version root@OpenWrt:~# cat /proc/asound/devices 0: [ 0] : control 16: [ 0- 0]: digital audio playback 24: [ 0- 0]: digital audio capture 33: : timer I have no .asoundrc or alsa.conf files, but from reading docs I don't think I should need them (is that true?). I also tried building alsa-lib with --with-debug=full, but I see no alsa output with dmesg. (Presumably a simple goof on my part but a pointer would be welcome.) >From /proc/bus/usb/devices I have: T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=0d8c ProdID=000c Rev= 1.00 S: Product=C-Media USB Headphone Set C:* #Ifs= 4 Cfg#= 1 Atr=a0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio I: If#= 1 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio I: If#= 1 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=01(O) Atr=09(Isoc) MxPS= 200 Ivl=1ms I: If#= 2 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio I: If#= 2 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=82(I) Atr=05(Isoc) MxPS= 100 Ivl=1ms I: If#= 3 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=(none) E: Ad=83(I) Atr=03(Int.) MxPS= 4 Ivl=32ms loaded modules: root@OpenWrt:~# lsmod Module Size Used by Tainted: P snd_pcm_oss 38240 0 - Live 0xc01c1000 snd_mixer_oss 14592 1 snd_pcm_oss, Live 0xc019a000 snd_usb_audio 54304 0 - Live 0xc018b000 snd_hwdep 5168 1 snd_usb_audio, Live 0xc0159000 snd_usb_lib 11456 1 snd_usb_audio, Live 0xc0119000 snd_rawmidi 16384 1 snd_usb_lib, Live 0xc0186000 snd_pcm 65248 2 snd_pcm_oss,snd_usb_audio, Live 0xc01a0000 snd_timer 16304 1 snd_pcm, Live 0xc0181000 snd 35904 8 snd_pcm_oss,snd_mixer_oss,snd_usb_audio,snd_hwdep,snd_usb_lib,snd_ra wmidi,snd_pcm,snd_timer, Live 0xc014f000 snd_page_alloc 5168 1 snd_pcm, Live 0xc011d000 i2c_dev 5488 0 - Live 0xc00ec000 usb_storage 26704 0 - Live 0xc015d000 sd_mod 11952 0 - Live 0xc0124000 scsi_mod 68320 2 usb_storage,sd_mod, Live 0xc016f000 i2c_core 11856 1 i2c_dev, Live 0xc0120000 ehci_hcd 39856 0 - Live 0xc012a000 ohci_hcd 25328 0 - Live 0xc0089000 ath_pci 82896 0 - Live 0xc0139000 wlan_xauth 448 0 - Live 0xc0084000 wlan_wep 4608 0 - Live 0xc0086000 wlan_tkip 10784 0 - Live 0xc007a000 wlan_ccmp 6304 0 - Live 0xc006f000 wlan_acl 2784 0 - Live 0xc0078000 ath_rate_sample 10400 1 ath_pci, Live 0xc007e000 ath_hal 221952 2 ath_pci,ath_rate_sample, Live 0xc00ae000 wlan_scan_sta 9664 0 - Live 0xc0068000 wlan_scan_ap 3104 0 - Live 0xc0058000 wlan 167488 9 ath_pci,wlan_xauth,wlan_wep,wlan_tkip,wlan_ccmp,wlan_acl,ath_rate_ sample,wlan_scan_sta,wlan_scan_ap, Live 0xc00ef000 soundcore 4784 1 snd, Live 0xc006c000 ppp_async 9440 0 - Live 0xc0061000 ppp_generic 20416 1 ppp_async, Live 0xc0072000 slhc 5632 1 ppp_generic, Live 0xc0065000 crc_ccitt 992 1 ppp_async, Live 0xc005a000 usbcore 113536 6 snd_usb_audio,snd_usb_lib,usb_storage,ehci_hcd,ohci_hcd, Live 0 xc0091000 switch_robo 3984 0 - Live 0xc005f000 switch_core 5088 1 switch_robo, Live 0xc005c000 Let me know if there is more info I could share that would help. Thanks for any aid! Peace & music Chuck ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
