On Thu, Feb 19, 2009 at 08:45:56AM +0200, Timo Ketolainen wrote: > Hello, > > I have here a HP 6735s laptop to which I've been trying to connect > Tascam's US-122L audio interface. With no luck so far. > > Connection goes consistently as follows with 2.6.29-rc4 kernel > patched with Karsten Wiese's modifications to ehci-hcd. > > (Same happens with both 64 bit and 32 bit - which I don't > have around anymore, because I went to 64 since I wanted to match the > kernel config to my desktop computer as closely as possible. On > desktop the Tascam works like a charm... Abit/Nvidia mobo, nocona cpu) > > ... > Feb 16 19:33:43 halley [ 53.338950] usb 2-3: New USB device found, > idVendor=0644, idProduct=800e > Feb 16 19:33:43 halley [ 53.338953] usb 2-3: New USB device strings: > Mfr=1, Product=2, SerialNumber=3 > Feb 16 19:33:43 halley [ 53.338955] usb 2-3: Product: US-122L > Feb 16 19:33:43 halley [ 53.338956] usb 2-3: Manufacturer: TASCAM > Feb 16 19:33:43 halley [ 53.338958] usb 2-3: SerialNumber: no serial > number > Feb 16 19:33:44 halley [ 53.448802] snd-usb-us122l 2-3:1.0: > usb_probe_interface > Feb 16 19:33:44 halley [ 53.448806] snd-usb-us122l 2-3:1.0: > usb_probe_interface - got id > Feb 16 19:33:44 halley [ 53.448812] snd-usb-us122l 2-3:1.1: > usb_probe_interface > Feb 16 19:33:44 halley [ 53.448814] snd-usb-us122l 2-3:1.1: > usb_probe_interface - got id > Feb 16 19:33:44 halley [ 53.518632] ALSA > sound/usb/usx2y/usb_stream.c:618: 0 > Feb 16 19:33:44 halley [ 53.524490] ALSA > sound/usb/usx2y/usb_stream.c:618: 0 > Feb 16 19:33:47 halley [ 56.912090] ALSA > sound/usb/usx2y/us122l.c:330: us122l_start error -14 > Feb 16 19:33:47 halley [ 56.912113] snd-usb-us122l: probe of 2-3:1.1 > failed with error -5 > Feb 16 19:33:47 halley [ 56.912144] usbcore: registered new > interface driver snd-usb-us122l > ... > (complete boot log somewhere below) > > Using usbmon shows that the interface connects fine most of the times, > but the transfers just freeze almost immediately after the isochronos > transfers begin. After that nothing goes in or out until the interface > is disconnected. > > As a sidenote, by Googling, it seems that there has been some problems > with HP laptops and this interface in Win world, too. To address this > a "AMD USB filter driver" has been released. Can't test it though, > since I ditched Vista as soon as I got my hands on this laptop. That fix should already be in your kernel, AMD made it a few kernel releases ago, so don't worry about it. I would suggest asking the alsa developers about this, if they have seen the problem or have any suggestions. sorry, I don't know what else to suggest :( greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
