From: Timur Tabi <timur@freescale.com>
To: linux-fbdev@vger.kernel.org
Subject: Re: "ls > /dev/fb0" generates weird ioctls if panning is set
Date: Fri, 16 Dec 2011 22:31:22 +0000 [thread overview]
Message-ID: <4EEBC6BA.1060905@freescale.com> (raw)
In-Reply-To: <4EEBBCEA.9020104@freescale.com>
Timur Tabi wrote:
> graphics fb0: unknown ioctl command (0x402C7413)
> graphics fb0: dir=2 type='t' (74) nr\x19 sizeD
> graphics fb0: unknown ioctl command (0x40087468)
> graphics fb0: dir=2 type='t' (74) nr\x104 size=8
> graphics fb0: unknown ioctl command (0x402C7413)
> graphics fb0: dir=2 type='t' (74) nr\x19 sizeD
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?
--
Timur Tabi
Linux kernel developer at Freescale
next prev parent reply other threads:[~2011-12-16 22:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-16 21:49 "ls > /dev/fb0" generates weird ioctls if panning is set Timur Tabi
2011-12-16 22:31 ` Timur Tabi [this message]
2011-12-16 23:03 ` Anatolij Gustschin
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