gsm_dlci_data_output(9)

🎀 NAME 🎀

okay so we're in the Kernel API Manual and this page is gsm_dlci_data_output(9) ✨ the NAME line is literally gsm_dlci_data_output — try and push data out of a DLCI 💅 that's the whole mission, bestie.

✨ SYNOPSIS ✨

int gsm_dlci_data_output (struct gsm_mux *gsm , struct gsm_dlci *dlci );

🧚 ARGUMENTS 🧚

• gsm — the mux 🫶
• dlci — the DLCI to pull data from 👀

💅 DESCRIPTION 💅

so the vibe is: pull data from a DLCI and send it into the transmit queue if there is data 🎀 it keeps to the MRU of the mux, periodt. this path handles the usual tty interface, which is a byte stream with optional modem data — it's giving byte stream with a modem-data side quest 🌸.

🚨 caller must hold the tx_lock of the mux. like, actually. hold the lock, bestie, or don't come for this function 🙈

🦋 SEE ALSO 🦋

Kernel file ./drivers/tty/n_gsm.c — plus the whole extended friend group:

• gsm_fcs_add(9), gsm_fcs_add_block(9), gsm_read_ea(9), gsm_read_ea_val(9), gsm_encode_modem(9), gsm_encode_params(9), gsm_register_devices(9), gsm_unregister_devices(9), gsm_print_packet(9)
• gsm_stuff_frame(9), gsm_send(9), gsm_dlci_clear_queues(9), gsm_response(9), gsm_command(9), gsm_data_alloc(9), gsm_send_packet(9), gsm_is_flow_ctrl_msg(9), gsm_data_kick(9)
• __gsm_data_queue(9), gsm_data_queue(9), gsm_dlci_data_output_framed(9), gsm_dlci_modem_output(9), gsm_dlci_data_sweep(9), gsm_dlci_data_kick(9), gsm_control_command(9), gsm_control_reply(9), gsm_process_modem(9)
• gsm_process_negotiation(9), gsm_control_modem(9), gsm_control_negotiation(9), gsm_control_rls(9), gsm_control_message(9), gsm_control_response(9), gsm_control_keep_alive(9), gsm_control_transmit(9), gsm_control_retransmit(9)
• gsm_control_send(9), gsm_control_wait(9), gsm_dlci_close(9), gsm_dlci_open(9), gsm_dlci_negotiate(9), gsm_dlci_t1(9), gsm_dlci_begin_open(9), gsm_dlci_set_opening(9), gsm_dlci_set_wait_config(9)
• gsm_dlci_begin_close(9), gsm_dlci_data(9), gsm_dlci_command(9), gsm_kick_timer(9), gsm_dlci_copy_config_values(9), gsm_dlci_config(9), gsm_dlci_alloc(9), gsm_dlci_free(9), gsm_dlci_release(9)
• gsm_queue(9), gsm0_receive_state_check_and_fix(9), gsm0_receive(9), gsm1_receive_state_check_and_fix(9), gsm1_receive(9), gsm_error(9), gsm_cleanup_mux(9), gsm_activate_mux(9), gsm_free_mux(9)
• gsm_free_muxr(9), gsm_alloc_mux(9), gsmld_output(9), gsmld_write_trigger(9), gsmld_write_task(9), gsmld_attach_gsm(9), gsmld_detach_gsm(9), gsmld_flush_buffer(9), gsmld_close(9)
• gsmld_open(9), gsmld_write_wakeup(9), gsmld_read(9), gsmld_write(9), gsmld_poll(9), gsm_modem_upd_via_data(9), gsm_modem_upd_via_msc(9), gsm_modem_update(9), gsm_wait_modem_change(9)

mwah 💋 source/version ./drivers/tty · date October 2026 — gsm_dlci_data_output(9) out! 🫶