usbatm cxacru.c,1.18,1.19
Duncan Sands
baldrick at free.fr
Fri Mar 4 09:01:28 EST 2005
On Fri, 2005-03-04 at 16:56 +0300, Roman Kagan wrote:
> On Fri, Mar 04, 2005 at 01:57:33PM +0100, Duncan Sands wrote:
> > I think it would be wiser to define a struct with two 16 bit fields:
> >
> > struct signature_struct {
> > __le16 idVendor;
> > __le16 idProduct;
> > } __attribute__ ((packed));
> >
> > and just write idVendor and idProduct into it.
>
> Is the way I did it:
>
> > + u16 signature[] = { usb_dev->descriptor.idVendor, usb_dev->descriptor.idProduct };
>
> worse than what you suggest? No bit-shift operators anymore.
What if the compiler aligns the array elements on 32 bit boundaries?
I don't know if gcc does that, or what the standard has to say.
Ciao,
D.
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