Le Vendredi 9 Février 2007 16:25, Luca Risolia a écrit :
> According to the V4L2 API, the prot argument of the mmap()
> system call must be set to PROT_READ | PROT_WRITE by the caller
> (whetever is the direction of data exchange):
>
> http://www.linuxtv.org/downloads/video4linux/API/V4L2_API/spec-single/v4l2.
>html#FUNC-MMAP
>
> The UVC driver should enforce this requirement by checking the memory
> flags and returning the -EACCESS error code to the caller, in case of
> missing flags.
>
> ---
>
> On the other hand, "luvcview" does not pass PROT_WRITE to mmap(),
> which is a bug too, since it may cause other more compliant
> V4L2 drivers to return an error if PROT_WRITE is not set.
Ok thanks.
>
> Best regards
> Luca Risolia
> _______________________________________________
> Linux-uvc-devel mailing list
> [email protected]
> https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
Best regards
--
Michel Xhaard
http://mxhaard.free.fr
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