[PATCH 07/23] em28xx: update description of em28xx_irq_callback

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em28xx_irq_callback can be used for isoc and bulk transfers.

Signed-off-by: Frank Schäfer <fschaefer.oss@xxxxxxxxxxxxxx>
---
 drivers/media/usb/em28xx/em28xx-core.c |    3 ++-
 1 Datei geändert, 2 Zeilen hinzugefügt(+), 1 Zeile entfernt(-)

diff --git a/drivers/media/usb/em28xx/em28xx-core.c b/drivers/media/usb/em28xx/em28xx-core.c
index 0892d92..8f50f5c 100644
--- a/drivers/media/usb/em28xx/em28xx-core.c
+++ b/drivers/media/usb/em28xx/em28xx-core.c
@@ -919,7 +919,7 @@ EXPORT_SYMBOL_GPL(em28xx_set_mode);
    ------------------------------------------------------------------*/
 
 /*
- * IRQ callback, called by URB callback
+ * URB completion handler for isoc/bulk transfers
  */
 static void em28xx_irq_callback(struct urb *urb)
 {
@@ -946,6 +946,7 @@ static void em28xx_irq_callback(struct urb *urb)
 
 	/* Reset urb buffers */
 	for (i = 0; i < urb->number_of_packets; i++) {
+		/* isoc only (bulk: number_of_packets = 0) */
 		urb->iso_frame_desc[i].status = 0;
 		urb->iso_frame_desc[i].actual_length = 0;
 	}
-- 
1.7.10.4

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