[ECOS] __attribute__ ((packed)) doesn't work

["Siegmund, Thomas" <thomas.siegmund@hach-lange.de>]

Hello,

I use an ARM9 development board, GCC 3.3.3 and the eCos Version 2.0. I'm
developing an USB driver. 
I got some trouble with the descriptor structures declared in "USB.h".
After the compilation these 
structs show the size of an alignment of 4 bytes boundary and not the
real size.

typedef struct usb_configuration_descriptor {
...
} usb_configuration_descriptor __attribute__((packed));

I moved the position of "__attribute__((packed))" to -> 

typedef struct usb_configuration_descriptor {
...
} __attribute__((packed)) usb_configuration_descriptor; 

and it works. So what did I wrong respectively what do I have to do it
works without changes?

The 2nd question why the does the "usb_endpoint_descriptor" own this
attribute though it has 
a size of 7 bytes and doesn't fit at 4 bytes boundary? Without this
attribute described above
the same misalignment is occured. 

Any ideas or hints? 

Thanks in advance Thomas  

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