hi, this is the logentry: >>> compiles again with alsa-current. USB_ISO_ASAP not used anymore (most of the time), instead urb->start_frame is calculated here now, some calls inside usb-driver don't need to happen anymore.
To get the best out of this:
Disable APM-support in the kernel as APM-BIOS calls
(once each second) hard disable interrupt for many
precious milliseconds.
This helped me much on my slowish PII 400 & PIII 500.
ACPI yet untested but might cause the same bad
behaviour.
Use a kernel with lowlatency and preemptiv patches
applied.
To autoload snd-usb-midi append a line
post-install snd-usb-us428 modprobe snd-usb-midi
to /etc/modules.conf.
known problems:
(1) interrupts > 1000 every 1 s.
(2)sliders, knobs, lights not yet handled except
MASTER Volume slider.
(3)"pcm -c 2" doesn't work. "pcm -c 2 -m
direct_interleaved" does.
(4)KDE3.03: "Enable full duplex operation" deadlocks.
<<<
tascams (still unauthorized) firmware is not included
but can be optained off
http://hal9000.drehmoment.org/tascam/
thanks for your support !
aaand does anybody have some clue(s) about the known
problem (3)?
best regards,
karsten
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us428_0.0.4_alsa0.9_gpl.tar.bz2
Description: us428_0.0.4_alsa0.9_gpl.tar.bz2
