PN544_I2C_FRAME_HEADROOM  286 drivers/nfc/pn544/i2c.c 	skb_pull(skb, PN544_I2C_FRAME_HEADROOM);
PN544_I2C_FRAME_HEADROOM  927 drivers/nfc/pn544/i2c.c 			    PN544_I2C_FRAME_HEADROOM, PN544_I2C_FRAME_TAILROOM,