Am Montag, den 21.09.2009, 05:40 +0200 schrieb Markus Rechberger:
> while porting the S2api to userspace I came accross the S2-API definition
> itself
>
> #define FE_SET_PROPERTY _IOW('o', 82, struct dtv_properties)
> #define FE_GET_PROPERTY _IOR('o', 83, struct dtv_properties)
>
> while looking at this, FE_GET_PROPERTY should very likely be _IOWR
>
> in dvb-frontend.c:
> ----
> if(cmd == FE_GET_PROPERTY) {
>
> tvps = (struct dtv_properties __user *)parg;
>
> dprintk("%s() properties.num = %d\n", __func__, tvps->num);
> dprintk("%s() properties.props = %p\n", __func__,
> tvps->props);
> ...
> if (copy_from_user(tvp, tvps->props, tvps->num *
> sizeof(struct dtv_property)))
> ----
>
> Regards,
> Markus
Seems to be a big issue.
Why you ever want to write to a get property?
Cheers,
Hermann
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