On Sun, Feb 03, 2002 at 12:04:46AM +0100, Julio Merino wrote:
> Hi all
> 
> I need to add two new ioctl's to wsdisplay, to get the mouse working.
> I've added the following to wsconsio.h:
> 
> /* Character/attributes of a position */
> struct wsdisplay_poscontent {
> 	struct wsdisplay_curpos pos;		/* position */
> 	u_int16_t character;			/* character */
> 	u_int16_t attr;				/* attributes */
> };
> #define WSDISPLAYIO_GETCHAR	_IOWR('W', 84, struct wsdisplay_poscontent)
> #define WSDISPLAYIO_PUTCHAR	_IOW('W', 85, struct wsdisplay_poscontent)

Wouldn't it be too expensive? On 80x25 terminal, you need 2000 ioctl's
to get attributes of all characters. I haven't calculated how many
ioctl's are needed for 128x48 console yet... :-) 

How about this one: 

struct wsdisplay_screeninfo {
	u_int16_t top, bottom, left, right;
	u_int16_t *charp;	/* size = (bottom - top + 1) *
					  (right - left + 1) */ 
	u_int16_t *attrp;	/* same as above */
}
#define WSDISPLAYIO_GETSCREEN	_IOWR('W', 84, struct wsdisplay_screeninfo)

Jun-Young

-- 
Bang Jun-Young <junyoung@mogua.com>