ipw2100_txb
(struct ipw2100_txb *)sc->sc_dma_txbufs[i].dr_base;
struct ipw2100_txb *txbuf;
OFFSETOF(struct ipw2100_txb, txb_hdr));
OFFSETOF(struct ipw2100_txb, txb_dat[0]));
(void) ddi_dma_sync(dr->dr_hnd, 0, sizeof (struct ipw2100_txb),
struct ipw2100_txb *sc_txbufs[IPW2100_NUM_TXBUF];
#define IPW2100_TXBUF_SIZE (sizeof (struct ipw2100_txb))