Terratec cinergy htc usb xs

[IriDium]

By virtue that the suffix is .c shows it's a C source file.

Which makes me think you'll need to compile the patch yourself (The link errors as an untrusted connection - so I won't look any further).

However, I doubt you'll succeed because of dependencies.

Have you actually tried the card with Xbian - what errors do you get.

Can you post the output of dmesg lsmod and lsusb

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Found the source Here

If it is really an em28xx then that has already been compiled into the kernel.

Do sudo modprobe em28xx

and try using the device.