Hi,

I’m trying adding support for Creative SB1240(Sound Blaster HD, USB DAC).. Player Volume control is working like a charm, but.. “Capture” interface (Mic, Line, Phonograph) – not working at all.

Can you help me to add support for this card?

I’m trying to sniff USB traffic between USB DAC & Windows Driver(with Wireshark usbdump). But.. I need more theory, to do it.. I cannot get work any capturing interface ☹

I’t my environment:

# uname -a Linux kernel 4.9.20 #1 SMP Wed Apr 5 18:42:37 MSK 2017 x86_64 GNU/Linux # cat /etc/group audio:x:63:root

# dmesg *************** [ 1.670745] usb 1-1.1: New USB device found, idVendor=041e, idProduct=3232 [ 1.670748] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 1.670750] usb 1-1.1: Product: USB Sound Blaster HD [ 1.670752] usb 1-1.1: Manufacturer: Creative Technology [ 1.670753] usb 1-1.1: SerialNumber: 000003II [ 1.673435] input: Creative Technology USB Sound Blaster HD as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1:1.5/0003:041E:3232.0001/input/input6 ***************

# ls -la /dev/snd/ total 0 drwxr-xr-x 4 root root 220 Apr 5 21:33 . drwxr-xr-x 15 root root 3360 Apr 5 21:34 .. drwxr-xr-x 2 root root 60 Apr 5 21:33 by-id drwxr-xr-x 2 root root 60 Apr 5 21:33 by-path crw-rw---- 1 root audio 116, 2 Apr 5 21:33 controlC0 crw-rw---- 1 root audio 116, 4 Apr 5 21:33 pcmC0D0c crw-rw---- 1 root audio 116, 3 Apr 5 21:34 pcmC0D0p crw-rw---- 1 root audio 116, 6 Apr 5 22:57 pcmC0D1c crw-rw---- 1 root audio 116, 5 Apr 5 21:33 pcmC0D1p crw-rw---- 1 root audio 116, 7 Apr 5 21:33 pcmC0D2p crw-rw---- 1 root audio 116, 33 Apr 5 21:33 timer

# amixer info Card default 'HD'/'Creative Technology USB Sound Blaster HD at usb-0000:00:1a.0-1.1, full speed' Mixer name : 'USB Mixer' Components : 'USB041e:3232' Controls : 8 Simple ctrls : 2

# amixer contents numid=6,iface=MIXER,name='PCM Playback Switch' ; type=BOOLEAN,access=rw------,values=1 : values=on numid=7,iface=MIXER,name='PCM Playback Volume' ; type=INTEGER,access=rw---R--,values=2,min=0,max=128,step=0 : values=128,128 | dBminmax-min=-64.00dB,max=0.00dB numid=8,iface=MIXER,name='PCM Capture Source' ; type=ENUMERATED,access=rw------,values=1,items=3 ; Item #0 'Mic' ; Item #1 'Line' ; Item #2 'Phonograph' : values=1 numid=4,iface=PCM,name='Capture Channel Map' ; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0 : values=0,0 | container | chmap-fixed=FL,FR

numid=1,iface=PCM,name='Playback Channel Map' ; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0 : values=3,4 | container | chmap-fixed=FL,FR

numid=5,iface=PCM,name='Capture Channel Map',device=1 ; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0 : values=0,0 | container | chmap-fixed=FL,FR

numid=2,iface=PCM,name='Playback Channel Map',device=1 ; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0 : values=0,0 | container | chmap-fixed=FL,FR

numid=3,iface=PCM,name='Playback Channel Map',device=2 ; type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0 : values=0,0 | container | chmap-fixed=FL,FR

С уважением, Александр Самохин

Заместитель начальника отдела Отдел информационных технологий и компьютерного обеспечения ФГУП «Большой Московский цирк»

Email: a.samokhin@greatcircus.rumailto:a.samokhin@greatcircus.ru , it@greatcircus.rumailto:it@greatcircus.ru Tel: +7 (495) 930-22-25, вн. 2002 Mob: +7 (903) 296-77-98