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yaml --- r: 151412 b: refs/heads/master c: 6d65b78 h: refs/heads/master v: v3
git-mirror · Jun 16, 2009 · 0dac05c · 0dac05c
1 parent a522628
commit 0dac05c
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3ffbba9511b4148cbe1f6b6238686adaeaca8feb
+refs/heads/master: 6d65b78a093552fb42448480d4c66bf093a6d4cf
diff --git a/trunk/include/linux/usb.h b/trunk/include/linux/usb.h
@@ -1044,7 +1044,9 @@ typedef void (*usb_complete_t)(struct urb *);
  * @setup_dma: For control transfers with URB_NO_SETUP_DMA_MAP set, the
  *	device driver has provided this DMA address for the setup packet.
  *	The host controller driver should use this in preference to
- *	setup_packet.
+ *	setup_packet, but the HCD may chose to ignore the address if it must
+ *	copy the setup packet into internal structures.  Therefore, setup_packet
+ *	must always point to a valid buffer.
  * @start_frame: Returns the initial frame for isochronous transfers.
  * @number_of_packets: Lists the number of ISO transfer buffers.
  * @interval: Specifies the polling interval for interrupt or isochronous