misc resource utilization fixes

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3212 42af7a65-404d-4744-a932-0658087f49c3

2 files changed, 7 insertions, 5 deletions

diff --git a/nuttx/include/nuttx/usb/usb.h b/nuttx/include/nuttx/usb/usb.h
index 69b9a1c1f..6e45334e6 100644
--- a/nuttx/include/nuttx/usb/usb.h
+++ b/nuttx/include/nuttx/usb/usb.h
@@ -230,7 +230,7 @@ struct usb_devdesc_s
   uint8_t subclass;          /* Device sub-class */
   uint8_t protocol;          /* Device protocol */
   uint8_t mxpacketsize;      /* Max packet size (ep0) */
-  uint8_t vender[2];         /* Vendor ID */
+  uint8_t vendor[2];         /* Vendor ID */
   uint8_t product[2];        /* Product ID */
   uint8_t device[2];         /* Device ID */
   uint8_t imfgr;             /* Manufacturer */
diff --git a/nuttx/include/nuttx/usb/usbhost.h b/nuttx/include/nuttx/usb/usbhost.h
index 8a7457bbd..fc4d6ad55 100644
--- a/nuttx/include/nuttx/usb/usbhost.h
+++ b/nuttx/include/nuttx/usb/usbhost.h
@@ -263,12 +263,14 @@
  * Input Parameters:
  *   drvr - The USB host driver instance obtained as a parameter from the call to
  *      the class create() method.
- *   req - Describes the request to be sent.  This data will be copied from the
- *      user provided memory.  Therefore, the req buffer may be declared on the
- *      stack.
+ *   req - Describes the request to be sent.  This request must lie in memory
+ *      created by DRVR_ALLOC.
  *   buffer - A buffer used for sending the request and for returning any
  *     responses.  This buffer must be large enough to hold the length value
- *     in the request description. buffer must have been allocated using DRVR_ALLOC
+ *     in the request description. buffer must have been allocated using DRVR_ALLOC.
+ *
+ *   NOTE: On an IN transaction, req and buffer may refer to the same allocated
+ *   memory.
  *
  * Returned Values:
  *   On success, zero (OK) is returned. On a failure, a negated errno value is