HelenOS sources

XHCI_CAP_MAX_PSA_SIZE   90 uspace/drv/bus/usb/xhci/debug.c 	DUMP_REG(cap, XHCI_CAP_MAX_PSA_SIZE);
XHCI_CAP_MAX_PSA_SIZE  320 uspace/drv/bus/usb/xhci/streams.c 	uint8_t max_psa_size = 1 << (XHCI_REG_RD(hc->cap_regs, XHCI_CAP_MAX_PSA_SIZE) + 1);