how to implement ioctl ?

[Aaron J. Grier]

On Mon, Dec 16, 2002 at 12:38:59PM +0100, Stan wrote:

> I don't use termios.

a shame.  it's more portable that way.

> how to implement 'console_control' to do that:
> 
> ioctl(fd, MY_MODE_SETTING, my_struct_for_setting);
> or
> ioctl(fd, MY_MODE_GETTING, my_struct_for_getting);
> ...

[snip]

> and in console.c :
> 
> rtems_device_driver console_control( rtems_device_major_number major,
> rtems_device_minor_number minor, void* arg)
> {
	rtems_libio_ioctl_args_t        *ioctlargs = arg;
	unsigned32			mode = ioctlargs->command;
	passatruct_s			*passastruct = ioctlargs->buffer;
> ...
>  what to make here to recover the arguments?
> ...
> 
>     switch(mode){

look at rtems_libio_ioctl_args_t structure in src/lib/libc/libio.h .

-- 
  Aaron J. Grier  |   Frye Electronics, Tigard, OR   |  aaron at frye.com