From: Jingoo Han
...
> /* The maximal threshold value is 0x80, which means 512 bytes */
> #define EHCI_THRESHOLD_512BYTES 0x80
> #define EHCI_THRESHOLD_508BYTES 0x79
It would be better to define these using expressions. So:
#define EHCI_THRESHOLD_512BYTES (512u / 8u)
#define EHCI_THRESHOLD_508BYTES (508u / 8u)
Then you might decide to use:
#define EHCI_THRESHOLD(size) ((size) / 8u)
Then realise that the names are not generic EHCI, so need some
driver-specific prefix (for namespace reasons).
And that the defines are probably limit values, and should
be named as such.
David
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