-32 broken pipe

-32 broken pipe

[Cem ERGEN]

hello
i've 8 hubs and each hubs has got 4 usb soundcards, i tried to install but i
cannot



[root@localhost ~]# 4 asoundinit_tx:1519 snd_pcm_hw_params() -32 Broken pipe
4 asoundinit_tx:1612 fail
/usr/sbin/safe_asterisk: line 125:  7171 Segmentation fault      nice -n
$PRIORITY ${ASTSBINDIR}/asterisk -f ${CLIARGS} ${ASTARGS}
Asterisk ended with exit status 139
Asterisk exited on signal EXITSTATUS-128.
cat: /var/run/asterisk.pid: No such file or directory




how could i fix that?

-32 broken pipe

[Cem ERGEN]

hello
i've 8 hubs and each hubs has got 4 usb soundcards, i tried to install but i
cannot



[root@localhost ~]# 4 asoundinit_tx:1519 snd_pcm_hw_params() -32 Broken pipe
4 asoundinit_tx:1612 fail
/usr/sbin/safe_asterisk: line 125:  7171 Segmentation fault      nice -n
$PRIORITY ${ASTSBINDIR}/asterisk -f ${CLIARGS} ${ASTARGS}
Asterisk ended with exit status 139
Asterisk exited on signal EXITSTATUS-128.
cat: /var/run/asterisk.pid: No such file or directory

Re: -32 broken pipe

[Clemens Ladisch]

(please don't create new threads for the same topic)

Cem ERGEN wrote:
> i've 8 hubs and each hubs has got 4 usb soundcards,

With 16-bit samples at 48 kHz, a full-speed bus has just barely enough
bandwidth for one stream with eight channels, or seven on-channel
streams.

Due to bugs in the EHCI driver, using multiple full-speed audio devices
connected to one or more high-speed hubs connected to one controller is
likely to fail.

Try using multiple controllers, and forcing the hubs to work at full
speed by unloading the ehci_hcd module.


Regards,
Clemens

Re: -32 broken pipe

[Clemens Ladisch]

Cem ERGEN wrote:
> fist 3 soundcards of each hub works .. but 4 soundcards of each hub aren't
> work same time

Looks like a bandwidth issue.
You still didn't tell what sample format these devices are using.


Regards,
Clemens

Re: -32 broken pipe

[Clemens Ladisch]

Cem ERGEN wrote:
> how could i learn sample format?

/proc/asound/cardX/stream0


Regards,
Clemens