[alsa-devel] armv7 raspberry pi kernel compilation and snd_usb_us122l tascam us122 module requires x86

[Takashi Iwai]

On Wed, 15 Jul 2015 12:47:18 +0200,
James Miller wrote:
> 
> hi - I am compiling a rt kernel for my raspberry pi, and I notice I am
> unable to select the us122l driver for inclusion as a module as it is
> listed as requiring x86 to be selected.
> 
> Many of the other modules are available and use the same codebase as the
> us122l driver, so I was wondering if the x86 requirement is strictly
> necessary?
> 
> Is it possible to check that the us122l module requires x86 and is
> incompatible with arm architecture please.

The driver does a special way of mmap that may work only on the
coherent architecture.  It *might* work on ARM, so just try and give a
patch if everything really works as expected.


Takashi