X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Flinux%2Fusb.h;h=73c7df4896074219ad76daee5e9eb0ba6e1a1976;hb=32e51f141fd8d880f57b6a2eb53ce72856254d4a;hp=65f78ca5d88e44f1faef15c7a551ad51c0db24b6;hpb=ca7d12000895ae5dfef8b8ff2648a0d50abd397c;p=firefly-linux-kernel-4.4.55.git

diff --git a/include/linux/usb.h b/include/linux/usb.h
index 65f78ca5d88e..73c7df489607 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -806,8 +806,10 @@ struct usbdrv_wrap {
  * @resume: Called when the device is being resumed by the system.
  * @reset_resume: Called when the suspended device has been reset instead
  *	of being resumed.
- * @pre_reset: Called by usb_reset_device() when the device
- *	is about to be reset.
+ * @pre_reset: Called by usb_reset_device() when the device is about to be
+ *	reset.  This routine must not return until the driver has no active
+ *	URBs for the device, and no more URBs may be submitted until the
+ *	post_reset method is called.
  * @post_reset: Called by usb_reset_device() after the device
  *	has been reset
  * @id_table: USB drivers use ID table to support hotplugging.