Hi all, I have made some experiments and things looks much more clear. Although I do not understand why once a time the device was initialized by Linux to HS operation but probably this is not so important. It seems that some additional configuration is needed. When I run native (without driver) Windows XP (in real hardware or in Virtualbox - does not matter) the sound card is initialized to FS. After driver installation it is in both cases (hardware and virtual environment) initialized to HS. I have recorded the data streams for both cases (FS and HS configuration) but unfortunately I cannot interpret it (without being enough familiar with USB protocol). If somebody can have a look and propose a patch initializing the device properly that would be great... or maybe I need to provide more data? I am more than willing to help finding the solution. The dumps can be downloaded from (I have provided both wireshark dumps and pure cat versions of each process): http://mgrecki.republika.pl/x-fi/x-fi.12 - FS configuration (Linux 3.9.2) recorded by wireshark (wireshark format) http://mgrecki.republika.pl/x-fi/x-fi.12.out - FS configuration (Linux 3.9.2) recorded by cat command (text format) http://mgrecki.republika.pl/x-fi/x-fi.480 - HS configuration (WinXP running in Virtualbox) recorded by wireshark (wireshark format) http://mgrecki.republika.pl/x-fi/x-fi.480.out - HS configuration (WinXP running in Virtualbox) recorded by cat command (text format) Thanks in advance for your help. Mariusz Grecki -- 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
