Paul Fulghum <[email protected]> writes:
>
> 1. define compat_ioctl() file operation for device and
> implement translation code in individual driver
> 2. add COMPATIBLE_IOCTL entry to include/linux/compat_ioctl.h
> to mark an ioctl code as the same in any environment
> 3. add HANDLE_IOCTL entry to fs/compat_ioctl.c with translation code
> implemented in the same file
>
> There is no way to implement #1 for a tty driver without
> modifying the kernel tty code to allow registration of a
> compat_ioctl() handler.
(1) is really the recommended solution for all new code
I would recommend you modify the tty driver to pass compat_ioctl
through through. Should not do very hard.
-Andi
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