1 # SPDX-License-Identifier: GPL-2.0-only 2 # 3 # LAPB Data Link Drive 4 # 5 6 config LAPB 7 tristate "LAPB Data Link Driver" 8 help 9 Link Access Procedure, Balanced (LAPB) is the data link layer (i.e. 10 the lower) part of the X.25 protocol. It offers a reliable 11 connection service to exchange data frames with one other host, and 12 it is used to transport higher level protocols (mostly X.25 Packet 13 Layer, the higher part of X.25, but others are possible as well). 14 Usually, LAPB is used with specialized X.21 network cards, but Linux 15 currently supports LAPB only over Ethernet connections. If you want 16 to use LAPB connections over Ethernet, say Y here and to "LAPB over 17 Ethernet driver" below. Read 18 <file:Documentation/networking/lapb-module.rst> for technical 19 details. 20 21 To compile this driver as a module, choose M here: the 22 module will be called lapb. If unsure, say N.
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