On Fri, 16 Dec 2011 16:31:22 -0600
Timur Tabi <timur@xxxxxxxxxxxxx> wrote:
> Timur Tabi wrote:
>
> > graphics fb0: unknown ioctl command (0x402C7413)
> > graphics fb0: dir=2 type='t' (74) nr=19 size=44
> > graphics fb0: unknown ioctl command (0x40087468)
> > graphics fb0: dir=2 type='t' (74) nr=104 size=8
> > graphics fb0: unknown ioctl command (0x402C7413)
> > graphics fb0: dir=2 type='t' (74) nr=19 size=44
>
> I figured it out. These ioctls are:
>
> #define TCGETS _IOR('t', 19, struct termios)
> #define TIOCGWINSZ _IOR('t', 104, struct winsize)
>
> I'm guessing that since I redirect stdout to /dev/fb0, Linux is
> treating /dev/fb0 as a terminal, and therefore it's receiving
> terminal ioctls.
>
> Is this something that fbdev should be supporting, or am I wrong
> to use /dev/fb0 as a terminal?
No. Do not redirect to /dev/fb0, use /dev/tty1 instead.
Anatolij
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