C++ (Cpp) snd_usbmidi_do_output示例

示例#1

文件： usbmidi.c 项目： BackupTheBerlios/tuxap

static void snd_usbmidi_out_urb_complete(struct urb* urb, struct pt_regs *regs)
{
	snd_usb_midi_out_endpoint_t* ep = urb->context;

	if (urb->status < 0) {
		if (snd_usbmidi_urb_error(urb->status) < 0)
			return;
	}
	snd_usbmidi_do_output(ep);
}

示例#2

/* called after transfers had been interrupted due to some USB error */
static void snd_usbmidi_error_timer(unsigned long data)
{
	snd_usb_midi_t *umidi = (snd_usb_midi_t *)data;
	int i;

	for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
		snd_usb_midi_in_endpoint_t *in = umidi->endpoints[i].in;
		if (in && in->error_resubmit) {
			in->error_resubmit = 0;
			in->urb->dev = umidi->chip->dev;
			snd_usbmidi_submit_urb(in->urb, GFP_ATOMIC);
		}
		if (umidi->endpoints[i].out)
			snd_usbmidi_do_output(umidi->endpoints[i].out);
	}
}

示例#3

static void snd_usbmidi_out_urb_complete(struct urb* urb, struct pt_regs *regs)
{
	snd_usb_midi_out_endpoint_t* ep = urb->context;

	spin_lock(&ep->buffer_lock);
	ep->urb_active = 0;
	spin_unlock(&ep->buffer_lock);
	if (urb->status < 0) {
		int err = snd_usbmidi_urb_error(urb->status);
		if (err < 0) {
			if (err != -ENODEV)
				mod_timer(&ep->umidi->error_timer,
					  jiffies + ERROR_DELAY_JIFFIES);
			return;
		}
	}
	snd_usbmidi_do_output(ep);
}

示例#4

static void snd_usbmidi_out_tasklet(unsigned long data)
{
	snd_usb_midi_out_endpoint_t* ep = (snd_usb_midi_out_endpoint_t *) data;

	snd_usbmidi_do_output(ep);
}