CF_SG_RESTART
if (!test_bit(CF_SG_RESTART, &cam->flags))
if (cam->state == S_STREAMING && test_bit(CF_SG_RESTART, &cam->flags))
set_bit(CF_SG_RESTART, &cam->flags);
set_bit(CF_SG_RESTART, &cam->flags);
clear_bit(CF_SG_RESTART, &cam->flags);
clear_bit(CF_SG_RESTART, &cam->flags);
clear_bit(CF_SG_RESTART, &cam->flags);