Exemplos de acpi_bus_receive_event em C++ (Cpp)

Exemplo n.º 1

Arquivo: main.c Projeto: HBelusca/NasuTek-Odyssey

VOID
NTAPI
ButtonWaitThread(PVOID Context)
{
    PIRP Irp = Context;
    int result;
    struct acpi_bus_event event;
    ULONG ButtonEvent;

    while (ACPI_SUCCESS(result = acpi_bus_receive_event(&event)) &&
           event.type != ACPI_BUTTON_NOTIFY_STATUS);

    if (!ACPI_SUCCESS(result))
    {
       Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
    }
    else
    {
       if (strstr(event.bus_id, "PWRF"))
           ButtonEvent = SYS_BUTTON_POWER;
       else if (strstr(event.bus_id, "SLPF"))
           ButtonEvent = SYS_BUTTON_SLEEP;
       else
           ButtonEvent = 0;

       RtlCopyMemory(Irp->AssociatedIrp.SystemBuffer, &ButtonEvent, sizeof(ButtonEvent));
       Irp->IoStatus.Status = STATUS_SUCCESS;
       Irp->IoStatus.Information = sizeof(ULONG);
    }

    IoCompleteRequest(Irp, IO_NO_INCREMENT);
}

Exemplo n.º 2

static ssize_t
acpi_system_read_event (
	struct file		*file,
	char			*buffer,
	size_t			count,
	loff_t			*ppos)
{
	int			result = 0;
	struct acpi_bus_event	event;
	static char		str[ACPI_MAX_STRING];
	static int		chars_remaining = 0;
	static char		*ptr;


	ACPI_FUNCTION_TRACE("acpi_system_read_event");

	if (!chars_remaining) {
		memset(&event, 0, sizeof(struct acpi_bus_event));

		if ((file->f_flags & O_NONBLOCK)
		    && (list_empty(&acpi_bus_event_list)))
			return_VALUE(-EAGAIN);

		result = acpi_bus_receive_event(&event);
		if (result) {
			return_VALUE(-EIO);
		}

		chars_remaining = sprintf(str, "%s %s %08x %08x\n", 
			event.device_class?event.device_class:"<unknown>",
			event.bus_id?event.bus_id:"<unknown>", 
			event.type, event.data);
		ptr = str;
	}

	if (chars_remaining < count) {
		count = chars_remaining;
	}

	if (copy_to_user(buffer, ptr, count))
		return_VALUE(-EFAULT);

	*ppos += count;
	chars_remaining -= count;
	ptr += count;

	return_VALUE(count);
}