isp1760_udc_read
return !!isp1760_udc_read(udc, field);
return isp1760_udc_read(udc, DC_FRAMENUM);
chipid = isp1760_udc_read(udc, DC_CHIP_ID_HIGH) << 16;
chipid |= isp1760_udc_read(udc, DC_CHIP_ID_LOW);
scratch = isp1760_udc_read(udc, DC_SCRATCH);
len = isp1760_udc_read(udc, DC_BUFLEN);
count = isp1760_udc_read(udc, DC_BUFLEN);