43 static void sd_isoc_irq(struct urb *urb);
87 	struct urb *urb;  in sd_start()  local
97 		urb = usb_alloc_urb(SD_NPKT, GFP_KERNEL);  in sd_start()
98 		if (!urb) {  in sd_start()
102 		gspca_dev->urb[n] = urb;  in sd_start()
103 		urb->transfer_buffer = usb_alloc_coherent(gspca_dev->dev,  in sd_start()
106 						&urb->transfer_dma);  in sd_start()
108 		if (urb->transfer_buffer == NULL) {  in sd_start()
112 		urb->dev = gspca_dev->dev;  in sd_start()
113 		urb->context = gspca_dev;  in sd_start()
114 		urb->transfer_buffer_length = SD_PKT_SZ * SD_NPKT;  in sd_start()
115 		urb->pipe = usb_rcvisocpipe(gspca_dev->dev,  in sd_start()
117 		urb->transfer_flags = URB_ISO_ASAP  in sd_start()
119 		urb->interval = 1;  in sd_start()
120 		urb->complete = sd_isoc_irq;  in sd_start()
121 		urb->number_of_packets = SD_NPKT;  in sd_start()
123 			urb->iso_frame_desc[i].length = SD_PKT_SZ;  in sd_start()
124 			urb->iso_frame_desc[i].offset = SD_PKT_SZ * i;  in sd_start()
154 static void sd_isoc_irq(struct urb *urb)  in sd_isoc_irq()  argument
156 	struct gspca_dev *gspca_dev = (struct gspca_dev *) urb->context;  in sd_isoc_irq()
157 	struct urb *urb0;  in sd_isoc_irq()
164 	if (urb->status != 0) {  in sd_isoc_irq()
165 		if (urb->status == -ESHUTDOWN)  in sd_isoc_irq()
171 		pr_err("urb status: %d\n", urb->status);  in sd_isoc_irq()
176 	if (urb == gspca_dev->urb[0] || urb == gspca_dev->urb[2])  in sd_isoc_irq()
180 	if (urb == gspca_dev->urb[1])  in sd_isoc_irq()
181 		urb0 = gspca_dev->urb[0];  in sd_isoc_irq()
183 		urb0 = gspca_dev->urb[2];  in sd_isoc_irq()
184 	for (i = 0; i < urb->number_of_packets; i++) {  in sd_isoc_irq()
188 		    || urb->iso_frame_desc[i].actual_length != SD_PKT_SZ) {  in sd_isoc_irq()
191 				urb->iso_frame_desc[i].actual_length);  in sd_isoc_irq()
197 			st = urb->iso_frame_desc[i].status;  in sd_isoc_irq()
237 		data = (u8 *) urb->transfer_buffer  in sd_isoc_irq()
238 					+ urb->iso_frame_desc[i].offset;  in sd_isoc_irq()
247 	st = usb_submit_urb(urb, GFP_ATOMIC);  in sd_isoc_irq()