From mboxrd@z Thu Jan 1 00:00:00 1970 From: alexander Subject: cannot submit syncpipe, usb2 audio Date: Wed, 04 Jan 2012 23:50:28 +0200 Message-ID: <4F04C9A4.9020601@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-lpp01m010-f51.google.com (mail-lpp01m010-f51.google.com [209.85.215.51]) by alsa0.perex.cz (Postfix) with ESMTP id 32EF810389C for ; Wed, 4 Jan 2012 22:57:14 +0100 (CET) Received: by lago2 with SMTP id o2so6431737lag.38 for ; Wed, 04 Jan 2012 13:57:13 -0800 (PST) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org |I asked in alsa-users about the state of usb2 audio class compliance some time ago but I never got a definitive answer.. I've done some digging on my own and found someone had a similar issue with the same error about a year ago. This is what dmesg says when I connect the device in usb2 mode, the last row is the error when I try to use it. [ 2384.749399] usb 1-2: USB disconnect, device number 2 [ 2390.729825] usb 1-2: new high speed USB device number 3 using ehci_hcd [ 2390.863654] generic-usb 0003:0926:0202.0003: hiddev0,hidraw0: USB HID v1.01 Device [Sound Devices USBPre2] on usb-0000:00:02.1-2/input3 [ 2418.388135] cannot submit syncpipe for urb 0, error -90: internal error Here are the lsusb -v as usb1.1 http://pastebin.com/Jj6mXHxJ and here as usb2 http://pastebin.com/8uCBAkNb I've looked at them and the only thing that differs is the|bInterval, wich is 1 in usb1.1 and 4 in usb2