Le Sun, 11 Dec 2011 20:54:02 +0100, Ede Wolf <listac@xxxxxxxxxxxxxxxx> a écrit : > Thanks for your reply. However, even if do not have any other device > on that port: > > $ lsusb | grep Bus\ 001 > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching > Hub Bus 001 Device 007: ID 0582:0096 Roland Corp. EDIROL UA-1EX > > It still says full speed. > > However, I found, that my bluetooth dongle, which is connected to a > completely different Port on the other side of that computer, is > responsible. Even if it still shows full speed. > > It seems, that while the mainboard claims 12 USB Ports, there are > only three usable busses - and if the card does not have exclusive > access to that particular bus, it won't record. > Maybe not exclusive, but USB1 may really be the problem - as it still > works when the midi interface is connected to the neighbour port. It > does not work, when keyboard or mouse are attached. Seconds your > claim. It was something that was discussed somewhere else, maybe here, or on the jack-devel or lad list. > > Even the USB3 ports are on one of those busses. USB sucks, I always > knew it. Now its offficial. > > I guess I'll go for an el cheapo PCI-USB Card just for the edirol. > Still have a PCI slot free. > > Thanks again, I did not think about USB1. However, what am I supposed > to see, when the card is in USB2 Mode? High Speed? According to wikipedia, it must be Hi-Speed http://en.wikipedia.org/wiki/USB But you must first be sure than the card is capable of that. It seam realistic to me, but I don't own such a card and I don't checked the alsa card matrix. http://www.alsa-project.org/main/index.php/Matrix:Main Also, be aware than on the wikipedia article, http://en.wikipedia.org/wiki/USB#Device_classes they mention the Audio class. For what I know, also something that was discussed somewhere on one of the 3 mentioned email listes, the audio class is not supported by an USB3 device. This is why no usb3 device are supported by alsa at that time, for what I know. The alsa team have other things to do than to fight with non documented devices. Now, what will append if you plug an audio usb1 or 2 device into an usb3 hub? I have no idea. I guess it will not work well because the snd-usb-audio device is made to work with usb1 and 2. But I can be wrong on this. > > > Am 11.12.2011 19:31, schrieb Dominique Michel: > > Le Sat, 10 Dec 2011 15:22:47 +0100, > > Ede Wolf<listac@xxxxxxxxxxxxxxxx> a écrit : > > > >> One more oddity: The Edirol cards happily ignores the vid and pid > >> options. I've played around with module options. While the card > >> should be position 5, it took position one. > >> Since the card also gets detected and loaded even if it has no > >> entry in the modules list at all, I suspect something is wrong > >> here. > >> > >> > >> $ cat /proc/asound/cards > >> 0 [Intel ]: HDA-Intel - HDA Intel > >> HDA Intel at 0xf49f4000 irq 54 > >> 1 [UA1EX ]: USB-Audio - UA-1EX > >> EDIROL UA-1EX at usb-0000:00:1a.0-1.2, full > >> speed > > > > full speed is USB1. I don't know, but I guess the edirol is USB2. > > Do you have another peripheral on the same USB hub? > > When some USB1 device is connected, the hub switch to USB1 for all > > its connected devices, even if the other are USB2. > > > > > > > ------------------------------------------------------------------------------ > Learn Windows Azure Live! Tuesday, Dec 13, 2011 > Microsoft is holding a special Learn Windows Azure training event for > developers. It will provide a great way to learn Windows Azure and > what it provides. You can attend the event by watching it streamed > LIVE online. Learn more at http://p.sf.net/sfu/ms-windowsazure > _______________________________________________ > Alsa-user mailing list > Alsa-user@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/alsa-user -- "We have the heroes we deserve." ------------------------------------------------------------------------------ Learn Windows Azure Live! Tuesday, Dec 13, 2011 Microsoft is holding a special Learn Windows Azure training event for developers. It will provide a great way to learn Windows Azure and what it provides. You can attend the event by watching it streamed LIVE online. Learn more at http://p.sf.net/sfu/ms-windowsazure _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
