[maemo-developers] DSME code?

[From: Austin Che]

> On Fri, Sep 14, 2007 at 12:39:18PM -0400, ext Jesse Guardiani wrote:
>> I'd personally love to see DSME open sourced.
>
> Oh, me too.  Nothing I've said on this list should indicate otherwise.
>
>> In particular, there are 
>> screen ON/OFF/Notify
>> events that it sends/receives via dbus that I'd love to extend. For 
>> example, I've got a DSME
>> related ticket that I'd like to close using dbus, but that probably 
>> isn't possible with DSME as-is:
>>  https://www.guardiani.us/projects/kagu/ticket/52
>
> You can just bypass DSME and deal with omapfb directly: see
> asm-arm/arch-omap/omapfb.h.  Note that DSME does this every 1s or so, so
> you're in a godawful race, so you might just have to nuke the blanking
> plugin or something.

    Jesse,
    
    I had previously looked at blanking the screen and figured out how
    to do it (not using dbus however) and there's no race with
    DSME. It stays off until the touchscreen or key is pressed. Here's
    code that'll blank the screen:
    
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/fb.h>
int main(int argc, char **argv) 
{
    int fb = open("/dev/fb0", O_NONBLOCK);
    if (fb < 0) perror("Error opening /dev/fb0");
    if (ioctl(fb, FBIOBLANK, VESA_POWERDOWN) < 0) perror("Blanking error");
    close(fb);
}