[Libusb-devel] Compilation warnings fixes (git patches included)

[Ludovic R. <lud...@gm...>]

Hello,

I fixed some compilation warnings.
The compiler warning is included in the patch commit message.
"git format-patch origin" patches attached.


I also have a lot of warnings like:
libusbi.h:257: warning: pointer of type ‘void *’ used in arithmetic

The fix is easy (see bellow). But It _may_ have side effects. The idea 
is to replace (void *) by (char *)


--- /var/folders/Ix/Ixm8JMceFo4zOwN0Ef92LU+++TI/-Tmp-//YWMApC_libusbi.h 
2009-10-25 10:13:30.000000000 +0100
+++ libusb/libusbi.h    2009-10-25 10:13:09.000000000 +0100
@@ -245,15 +245,15 @@ struct usbi_transfer {
  };

  #define __USBI_TRANSFER_TO_LIBUSB_TRANSFER(transfer) \
-   ((struct libusb_transfer *)(((void *)(transfer)) \
+   ((struct libusb_transfer *)(((char *)(transfer)) \
         + sizeof(struct usbi_transfer)))
  #define __LIBUSB_TRANSFER_TO_USBI_TRANSFER(transfer) \
-   ((struct usbi_transfer *)(((void *)(transfer)) \
+   ((struct usbi_transfer *)(((char *)(transfer)) \
         - sizeof(struct usbi_transfer)))

  static inline void *usbi_transfer_get_os_priv(struct usbi_transfer 
*transfer)
  {
-   return ((void *)transfer) + sizeof(struct usbi_transfer)
+   return ((char *)transfer) + sizeof(struct usbi_transfer)
         + sizeof(struct libusb_transfer)
         + (transfer->num_iso_packets
             * sizeof(struct libusb_iso_packet_descriptor));


Regards,

-- 
  Dr. Ludovic Rousseau