Merge branches 'xxxajk' and 'xxxajk' of github.com:felis/USB_Host_Shield_2.0 into xxxajk
fix boo-boo in code.
Merge remote branch 'origin' into xxxajk
Merge branches 'xxxajk', 'xxxajk' and 'master' of github.com:felis/USB_Host_Shield_2.0
Merge branch 'xxxajk'