gsmld_output(9)

💅 gsmld_output(9) — write to link

okay so bestie, this is a page straight outta the Kernel API Manual, and we’re talking about gsmld_output. It’s giving “tiny function, very specific job” energy, and honestly? Iconic. 🎀

---

✨ NAME ✨

gsmld_output — write to link. That’s the whole name, no cap. 💅

---

🌸 SYNOPSIS 🌸

int gsmld_output (struct gsm_mux *gsm , u8 *data , int len );

---

🦋 ARGUMENTS 🦋

• gsm — our mux, the main character of this whole situation 🫶
• data — the bytes to output, literally the payload bestie 💖
• len — the size, aka how much data we’re working with ✨

---

💜 DESCRIPTION 💜

okay so gsmld_output writes a block of data from the GSM mux to the data channel. That’s the vibe. 🌀

It will eventually be serialized from above — but at the moment? It isn’t. Not yet. periodt. 💀

real talk: “eventually be serialized from above but at the moment isn’t” is the actual state of things here, so don’t go assuming it’s already serialized, bestie 😭

---

🔥 SEE ALSO 🔥

Kernel file ./drivers/tty/n_gsm.c — yes, that one — plus this whole friend group of (9) icons:

• 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(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_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)

---

sign-off szn: this cutie came from source/version ./drivers/tty, dated October 2026 — mwah, mwah 💋💖