[TAG] Error Compiling Atmel Wireless Driver

[Peter Knaggs]

Hi Lih-Chern,

I tried again on Debian Sid (unstable)
with kernel 2.6.13 from
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.13.tar.bz2
and gcc (GCC) 4.0.2 20050821 (prerelease) (Debian 4.0.1-6)

Now I do indeed see the same compile error
as you.

It seems that if you edit the following
two files to remove a couple of what are called
"casts" in the C language, the driver compiles OK:

atmelwlandriver/src/usb/rx.c
atmelwlandriver/src/usb/vnetusba.c

Here's the output of "diff -u" to give you
an idea of where to make the change. If you're
not familiar with "diff -u", first make a backup
copy of the files rx.c and vnetusba.c, into
a sub-directory called "original", then
edit one copy so that the output of
  diff -u rx.c original/rx.c
matches what's shown below. There's also a handy
utility called "patch" which can do this for you,
but let's leave explaining that for another day :)


--- rx.c        2005-09-19 20:08:07.000000000 -0700
+++ original/rx.c       2005-09-19 20:07:09.000000000 -0700
@@ -746,7 +746,7 @@
                            Adapter->RxInBuff.WirelessPacket +
                            MGMT_FRAME_BODY_OFFSET;

-                       Adapter->ErrorCode =
+                       (UCHAR) Adapter->ErrorCode =
                            (UCHAR) *
                            (PUSHORT) &
                            AssociationRspnsFrame





--- vnetusba.c  2005-09-19 20:08:56.000000000 -0700
+++ original/vnetusba.c 2005-09-19 20:08:32.000000000 -0700
@@ -843,7 +843,7 @@
   u64* pTime = (u64*) tCurrentTime;
   struct timeval timev;
   do_gettimeofday(&timev);
-  (*pTime) = timev.tv_sec * 10000000;
+  (u64) (*pTime) = timev.tv_sec * 10000000;
 };

 int atmel_assoc_info_event (PVNet_ADAPTER Adapter)



Hope that gets you to the point where you
can compile OK. I'll have a look into why
the casts were giving trouble, but gcc4 didn't
give any warning when they were removed.

Still, on 2.6.13 I do get a warning about
wireless_send_event being undefined, hopefully
you won't see that :)

Cheers,
Peter.