Am Sonntag 31 August 2003 10:39 schrieb Martin Langer: > On Wed, Aug 20, 2003 at 08:29:12PM +0200, Karsten Wiese wrote: > > would you try the us428 audio part on the us122? > > Yes, I've tried it out and capturing runs perfect. Playback is ok if you do > it not longer than 5 seconds or so. Then speed becomes slower and > sloooweeer and it sounds terrible croaky from there on. I guess that's the > sync problem you mentioned. > you have built your module with debug=full? can you then do something like this in a console: dmesg -c aplay file until sound starts getting croaky then immediately conrol+c dmesg>dmesgfile and then send dmesgfile to me? also please attach a lsusb of the us122. and the changes you applied for this test.
(Just for Information the lsusb of the us428 here gives: Bus 001 Device 003: ID 1604:8001 Tascam US-428 Audio/Midi Controller Language IDs: none (invalid length string descriptor bf; len=0) Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.00 bDeviceClass 0 Interface bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x1604 Tascam idProduct 0x8001 US-428 Audio/Midi Controller bcdDevice 0.01 iManufacturer 0 iProduct 0 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 183 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x40 Self Powered MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 5 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 2 Transfer Type Bulk Synch Type none wMaxPacketSize 64 bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 3 Transfer Type Interrupt Synch Type none wMaxPacketSize 21 bInterval 10 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x06 EP 6 OUT bmAttributes 2 Transfer Type Bulk Synch Type none wMaxPacketSize 64 bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 2 Transfer Type Bulk Synch Type none wMaxPacketSize 64 bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type none wMaxPacketSize 64 bInterval 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 1 bNumEndpoints 8 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 2 Transfer Type Bulk Synch Type none wMaxPacketSize 64 bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 3 Transfer Type Interrupt Synch Type none wMaxPacketSize 21 bInterval 10 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x06 EP 6 OUT bmAttributes 2 Transfer Type Bulk Synch Type none wMaxPacketSize 64 bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 2 Transfer Type Bulk Synch Type none wMaxPacketSize 64 bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type none wMaxPacketSize 64 bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x88 EP 8 IN bmAttributes 1 Transfer Type Isochronous Synch Type none wMaxPacketSize 200 bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x8a EP 10 IN bmAttributes 1 Transfer Type Isochronous Synch Type none wMaxPacketSize 200 bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x0a EP 10 OUT bmAttributes 1 Transfer Type Isochronous Synch Type none wMaxPacketSize 200 bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 2 bNumEndpoints 8 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 2 Transfer Type Bulk Synch Type none wMaxPacketSize 64 bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 3 Transfer Type Interrupt Synch Type none wMaxPacketSize 21 bInterval 10 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x06 EP 6 OUT bmAttributes 2 Transfer Type Bulk Synch Type none wMaxPacketSize 64 bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 2 Transfer Type Bulk Synch Type none wMaxPacketSize 64 bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type none wMaxPacketSize 64 bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x88 EP 8 IN bmAttributes 1 Transfer Type Isochronous Synch Type none wMaxPacketSize 300 bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x8a EP 10 IN bmAttributes 1 Transfer Type Isochronous Synch Type none wMaxPacketSize 300 bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x0a EP 10 OUT bmAttributes 1 Transfer Type Isochronous Synch Type none wMaxPacketSize 300 bInterval 1 Language IDs: none (invalid length string descriptor bf; 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