HelenOS sources

RCTL_SBP          519 uspace/drv/nic/e1k/e1k.c 	if (rctl & RCTL_SBP)
RCTL_SBP          546 uspace/drv/nic/e1k/e1k.c 		rctl |= RCTL_SBP;
RCTL_SBP          548 uspace/drv/nic/e1k/e1k.c 		rctl &= ~RCTL_SBP;
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