Symbol: USB_CDC_LINE_CODING_LEN
usr/src/uts/common/io/usb/clients/usbser/usbsacm/usbsacm.c
2631
if ((bp = allocb(USB_CDC_LINE_CODING_LEN, BPRI_HI)) == NULL) {
usr/src/uts/common/io/usb/clients/usbser/usbsacm/usbsacm.c
2639
bp->b_wptr += USB_CDC_LINE_CODING_LEN;