Re: Re: [Linux-fbdev-users] Monocrom Display

[<he...@ar...>]

Hello Tony,

many, many thanks for your sugestions! __get_free_pages() and co works now.

The last added function was SetPageReserved(). I do not know about this fun=
ktion, find only in other FB drivers. So I will reading something about mem=
ory function in kernel and give all my functions the correct Arguments.

Thanks again!

Henry

>=20
> Yes, I saw that.  What I meant was XFBDev (and most fb-based
> applications) requires that video memory is mappable to userspace,
> otherwise the driver will only work within the console.  If you need to
> have these apps work, then you have to find a way to map the video
> memory.  Also fix->smem_start requires a physical address, so you need
> the virt_to_phys() macro.
>=20
> You can try this in xxxfb_encode_fix():
>=20
> fix->smem_start =3D virt_to_phys(info.vmemory)
>=20
> If you're very lucky, vmalloc() might have given you a chunk of memory
> that is linear.  Do not rely on vmalloc() though, try __get_free_pages()
> instead.
>=20
> Tony
>=20




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