LDATTACH(8) LDATTACH(8) ldattach - (line discipline) ldattach [-1278denoVh] [-i iflag] [-s speed] [-m mtu] ldisc device ldattach ( ) ldisc / . . ldisc . kill(1) ldattach. ldattach . (LINE DISCIPLINES) : TTY(0) ( ) ( ). SLIP(1) Serial Line IP (SLIP) TCP/IP . MOUSE(2) RS232 ( ). PPP(3) Point to Point Protocol (PPP) . STRIP(4) AX25(5) X25(6) X.25 . 6PACK(7); R3964(9) Simatic R3964. IRDA(11) IrDa ( ) - HDLC(13) HDLC . SYNC_PPP(14) PPP . HCI(15) Bluetooth HCI UART. GIGASET_M101(16) Siemens Gigaset M101 DECT. PPS(18) Pulse Per Second (PPS) . GSM0710(21) GSM 07.10 (CMUX). -1 --onestopbit (stop bits) . -2 --twostopbits (stop bits) . -7 --sevenbits 7 . -8 --eightbits 8 . -d --debug ldattach . -e --evenparity (parity) . -i --iflag ... c_iflag . () . . . -n --noparity (parity) (none). -o --oddparity (parity) . -s --speed ( ) () . -c --intro-command _ ldattach. GSM0710 'AT+CMUX=0\r' CMUX. -p --pause () ldattach. . -m --mtu GSM0710 CMUX. ldattach 127. 3GPP TS 27.010 31 -h --help . -V --version . Tilman Schmidt inputattach(1) ttys(4) . ldattach util-linux . util-linux 2.42.1 2026-05-18 LDATTACH(8)