Search found 229 matches

by Drumfix
Sat Aug 03, 2019 4:21 pm
Forum: Linux Music News
Topic: Maintaining a Real Time Stable Kernel
Replies: 25
Views: 2607

Re: Maintaining a Real Time Stable Kernel

You can do this statically at boot time with the isolcpus= boot parameter or dynamically using cpusets
by Drumfix
Thu Jul 18, 2019 8:01 pm
Forum: New? We're glad you're here!
Topic: Guitarist interested in Linux solutions
Replies: 10
Views: 390

Re: Guitarist interested in Linux solutions

Of course the output of lsusb -v doesn't change.

With the recompiled driver loaded you should see the GR-55 as audio device.

.. and this thread should be continued in the "Computer Related Hardware" section.
by Drumfix
Wed Jul 17, 2019 5:07 pm
Forum: New? We're glad you're here!
Topic: Guitarist interested in Linux solutions
Replies: 10
Views: 390

Re: Guitarist interested in Linux solutions

For a start, add this to the quirks-table.h: { /* Roland GR-55 */ USB_DEVICE(0x0582, 0x0127), .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { .vendor_name = "Roland", .product_name = "GR-55", .ifnum = QUIRK_ANY_INTERFACE, .type = QUIRK_COMPOSITE, .data =...
by Drumfix
Wed Jul 17, 2019 3:32 pm
Forum: New? We're glad you're here!
Topic: Guitarist interested in Linux solutions
Replies: 10
Views: 390

Re: Guitarist interested in Linux solutions

Getting the audio part of a Roland/Boss USB device working is usually a matter of adding a quirk and recompiling the snd-usb-audio driver.

What is the output of "sudo lsusb -v" for this device ?
by Drumfix
Mon Jul 15, 2019 4:24 pm
Forum: Computer Related Hardware
Topic: Decent Interface in the $800-$1000 Range
Replies: 2
Views: 184

Re: Decent Interface in the $800-$1000 Range

The TC Konnekt 48 is supported by ALSA since kernel 4.18
by Drumfix
Thu Jul 11, 2019 8:16 pm
Forum: Computer Related Hardware
Topic: Looking for a good quality Audio interface... for cheap...
Replies: 22
Views: 602

Re: Looking for a good quality Audio interface... for cheap...

For the midisport you need to have the package "midisport-firmware" installed.
by Drumfix
Mon Jun 17, 2019 5:46 am
Forum: System Tuning and Configuration
Topic: Some questions about interrupts and usb
Replies: 4
Views: 234

Re: Some questions about interrupts and usb

The 3.0 card has its own host controller and interrupt. So if you connect your audio interface to a USB port of the 3.0 card and all other devices to your builtin USB ports, the soundcard has its own interrupt.
by Drumfix
Sun Jun 16, 2019 3:42 pm
Forum: System Tuning and Configuration
Topic: Some questions about interrupts and usb
Replies: 4
Views: 234

Re: Some questions about interrupts and usb

The short answer: Yes, you need usb 3.0 card. The long answer: You are using an xhci host controller. While this host controller allows up to 8 MSI interrupts, the linux host controller driver allocates only 1. The usb 2.0 root hub you see is integrated in the xhci host controller, so it is also usi...
by Drumfix
Thu Jun 13, 2019 5:44 pm
Forum: Computer Related Hardware
Topic: Ultralite AVB
Replies: 239
Views: 27364

Re: Ultralite AVB

i meant the first of the available AVB streams.
by Drumfix
Thu Jun 13, 2019 6:03 am
Forum: Computer Related Hardware
Topic: USB Audio Interface JACK Xruns on Linux but not on Windows
Replies: 51
Views: 1824

Re: USB Audio Interface JACK Xruns on Linux but not on Windows

Then it looks as if ALSA does not use implicit feedback for synchronization of input and output for this device. Changing this requires a kernel patch.
by Drumfix
Wed Jun 12, 2019 5:27 pm
Forum: Computer Related Hardware
Topic: USB Audio Interface JACK Xruns on Linux but not on Windows
Replies: 51
Views: 1824

Re: USB Audio Interface JACK Xruns on Linux but not on Windows

Use 48 or 96 samples with 3 buffers. And forget about the reported latencies on W10, except if they were measured with the RTL utility from oblique audio.
by Drumfix
Wed May 29, 2019 5:23 am
Forum: Computer Related Hardware
Topic: Ultralite AVB
Replies: 239
Views: 27364

Re: Ultralite AVB

cc1: error: code model kernel does not support PIC mode This is a bug on newer gcc versions. /bin/sh: 1: [: -ge: unexpected operator You are not using bash as your standard shell. Please try the updated Makefile and report back, preferably by opening an issue on github.
by Drumfix
Tue May 28, 2019 5:36 pm
Forum: Computer Related Hardware
Topic: Ultralite AVB
Replies: 239
Views: 27364

Re: Ultralite AVB

You find the code here https://github.com/Drumfix/avb4linux Special notes: - at present only 1 8-in and 1 8-out stream is supported (rhe dirst of the interface - all 8 channels of the szream going to the computer must be connected - You have to edit the file kernel_module/avb-config.h and replace th...
by Drumfix
Mon May 27, 2019 5:40 am
Forum: Newbies
Topic: Digigram sound card with Debian, anybody ?
Replies: 8
Views: 362

Re: Digigram sound card with Debian, anybody ?

4.9.0-4-amd64 != 4.9.0-9-amd64

Btw, if you compile a module for the currently running kernel, then

Code: Select all

make


is enough.
by Drumfix
Sat May 25, 2019 6:00 pm
Forum: Newbies
Topic: Digigram sound card with Debian, anybody ?
Replies: 8
Views: 362

Re: Digigram sound card with Debian, anybody ?

First of all make sure your kernel-headers are installed. Then: git clone https://github.com/Digigram-audio/Alsa.git cd Alsa git checkout v3.0.7 cd LX Add following 3 lines to the file "lxcommon.h": #define PCI_SUBDEVICE_ID_DIGIGRAM_LXMADI_SUBSYSTEM 0xca21 #define PCI_SUBDEVICE_ID_DIGIGRAM...

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