gsm_is_flow_ctrl_msg(9)

💅 NAME 💅

gsm_is_flow_ctrl_msg — bestie, this one literally just checks if a message is a flow control message 🎀

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✨ SYNOPSIS ✨

bool gsm_is_flow_ctrl_msg (struct gsm_msg *msg );

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🫶 ARGUMENTS 🫶

• msg — the message we're vibe-checking 🔍

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🌸 DESCRIPTION 🌸

Okay so here's the tea, bestie 🍓 — this function hands you back true when the message you passed in is a flow control command of the control channel. Slay. 💅

And in any other case? You get false. That's it, that's the whole personality. No cap. ✨

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🦋 SEE ALSO 🦋

The kernel file is right here: ./drivers/tty/n_gsm.c — and it's giving iconic extended family, because here's the whole group chat 👑:

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_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_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)

Like, genuinely the whole friend group showed up. Obsessed. 💖

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💀 Friendly reminder that these are all the references exactly as listed — no substitutions, no swapsies, iykyk.

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🧚 Sign-off 🧚

This little gem lives in ./drivers/tty, dated October 2026, and the page itself is gsm_is_flow_ctrl_msg(9) — part of the Kernel API Manual 🌈. Bye bestie, go check those flow control messages, periodt. 💜👑