McBSP in ARM side

McBSP in ARM side

[Luís Vitório Cargnini]

someone knows how to access an specific McBSP in ARM side ?
according the sources i could load the McBSP driver and use some specific f
unctions as omap_mcbsp_start() for example.
Or what device of /dev i must open ???
or for what /dev entries the McBSP are mapped
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Thanks && Regards
Msc. Bsc. Luís Vitório Cargnini
IEEE Member
Mastering Degree student @ PUC-RS
Electrical Engineer Faculty
Ipiranga Avenue, 6681 – Building 30
P.O. Box: 90619-900 – Porto Alegre/RS
Phone: +55 51 3320 3500  extension: 7696
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Re: McBSP in ARM side

[Nishanth Menon]

Hi Luis
Luís Vitório Cargnini stated on 2/24/2007 6:31 AM:
> someone knows how to access an specific McBSP in ARM side ?
> according the sources i could load the McBSP driver and use some
> specific f
> unctions as omap_mcbsp_start() for example.
> Or what device of /dev i must open ???
> or for what /dev entries the McBSP are mapped
There are drivers and driver libraries. Drivers provide interfaces to
the userspace.. and libraries are not designed to expose anything to the
external world, and are meant to be used by other drivers to perform
some operation... to my knowledge, McBSP falls in that world of "driver
libraries" just like DMA. if you would like to do something with it, you
should be in kernel space.. Now, if your usecase insists on having a
userspace access... you could write your own wrapper to the driver
library just like what i2c-dev does for I2C driver library.
Regards,
Nishanth Menon