# SPDX-License-Identifier: GPL-2.0-only config MKISS tristate "Serial port KISS driver" depends on AX25 && TTY select CRC16 help KISS is a protocol used for the exchange of data between a computer and a Terminal Node Controller (a small embedded system commonly used for networking over AX.25 amateur radio connections; it connects the computer's serial port with the radio's microphone input and speaker output). Although KISS is less advanced than the 6pack protocol, it has the advantage that it is already supported by most modern TNCs without the need for a firmware upgrade. To compile this driver as a module, choose M here: the module will be called mkiss. config 6PACK tristate "Serial port 6PACK driver" depends on AX25 && TTY help 6pack is a transmission protocol for the data exchange between your PC and your TNC (the Terminal Node Controller acts as a kind of modem connecting your computer's serial port to your radio's microphone input and speaker output). This protocol can be used as an alternative to KISS for networking over AX.25 amateur radio connections, but it has some extended functionality. Note that this driver is still experimental and might cause problems. For details about the features and the usage of the driver, read <file:Documentation/networking/6pack.rst>. To compile this driver as a module, choose M here: the module will be called 6pack. config BPQETHER tristate "BPQ Ethernet driver" depends on AX25 help AX.25 is the protocol used for computer communication over amateur radio. If you say Y here, you will be able to send and receive AX.25 traffic over Ethernet (also called "BPQ AX.25"), which could be useful if some other computer on your local network has a direct amateur radio connection. config SCC tristate "Z8530 SCC driver" depends on ISA && AX25 help These cards are used to connect your Linux box to an amateur radio in order to communicate with other computers. If you want to use this, read <file:Documentation/networking/device_drivers/hamradio/z8530drv.rst> and the AX25-HOWTO, available from <http://www.tldp.org/docs.html#howto>. Also make sure to say Y to "Amateur Radio AX.25 Level 2" support. To compile this driver as a module, choose M here: the module will be called scc. config SCC_DELAY bool "additional delay for PA0HZP OptoSCC compatible boards" depends on SCC help Say Y here if you experience problems with the SCC driver not working properly; please read <file:Documentation/networking/device_drivers/hamradio/z8530drv.rst> for details. If unsure, say N. config SCC_TRXECHO bool "support for TRX that feedback the tx signal to rx" depends on SCC help Some transmitters feed the transmitted signal back to the receive line. Say Y here to foil this by explicitly disabling the receiver during data transmission. If in doubt, say Y. config BAYCOM_SER_FDX tristate "BAYCOM ser12 fullduplex driver for AX.25" depends on AX25 && !S390 select CRC_CCITT help This is one of two drivers for Baycom style simple amateur radio modems that connect to a serial interface. The driver supports the ser12 design in full-duplex mode. In addition, it allows the baudrate to be set between 300 and 4800 baud (however not all modems support all baudrates). This is the preferred driver. The next driver, "BAYCOM ser12 half-duplex driver for AX.25" is the old driver and still provided in case this driver does not work with your serial interface chip. To configure the driver, use the sethdlc utility available in the standard ax25 utilities package. For information on the modems, see <http://www.baycom.de/> and <file:Documentation/networking/device_drivers/hamradio/baycom.rst>. To compile this driver as a module, choose M here: the module will be called baycom_ser_fdx. This is recommended. config BAYCOM_SER_HDX tristate "BAYCOM ser12 halfduplex driver for AX.25" depends on AX25 && !S390 select CRC_CCITT help This is one of two drivers for Baycom style simple amateur radio modems that connect to a serial interface. The driver supports the ser12 design in half-duplex mode. This is the old driver. It is still provided in case your serial interface chip does not work with the full-duplex driver. This driver is deprecated. To configure the driver, use the sethdlc utility available in the standard ax25 utilities package. For information on the modems, see <http://www.baycom.de/> and <file:Documentation/networking/device_drivers/hamradio/baycom.rst>. To compile this driver as a module, choose M here: the module will be called baycom_ser_hdx. This is recommended. config BAYCOM_PAR tristate "BAYCOM picpar and par96 driver for AX.25" depends on PARPORT && AX25 select CRC_CCITT help This is a driver for Baycom style simple amateur radio modems that connect to a parallel interface. The driver supports the picpar and par96 designs. To configure the driver, use the sethdlc utility available in the standard ax25 utilities package. For information on the modems, see <http://www.baycom.de/> and the file <file:Documentation/networking/device_drivers/hamradio/baycom.rst>. To compile this driver as a module, choose M here: the module will be called baycom_par. This is recommended. config BAYCOM_EPP tristate "BAYCOM epp driver for AX.25" depends on PARPORT && AX25 && !64BIT select CRC_CCITT help This is a driver for Baycom style simple amateur radio modems that connect to a parallel interface. The driver supports the EPP designs. To configure the driver, use the sethdlc utility available in the standard ax25 utilities package. For information on the modems, see <http://www.baycom.de/> and the file <file:Documentation/networking/device_drivers/hamradio/baycom.rst>. To compile this driver as a module, choose M here: the module will be called baycom_epp. This is recommended. config YAM tristate "YAM driver for AX.25" depends on AX25 && !S390 help The YAM is a modem for packet radio which connects to the serial port and includes some of the functions of a Terminal Node Controller. If you have one of those, say Y here. To compile this driver as a module, choose M here: the module will be called yam.