gsmld_flush_buffer(9)

💅 gsmld_flush_buffer(9) — kernel API manual, but make it make sense

okay so bestie, we're in the kernel API manual today and this page is about gsmld_flush_buffer. yes that's a mouthful, no you don't have to say it out loud. it's a tiny function with one job and honestly? it does it flawlessly. 🎀

---

✨ NAME ✨

gsmld_flush_buffer — clean input queue

like, it empties the input queue. that's the whole personality. 🧹✨

---

🌸 SYNOPSIS 🌸

void gsmld_flush_buffer (struct tty_struct *tty );

returns nothing (void, icon behavior), takes one arg, moves on with its life 💅

---

🦋 ARGUMENTS 🦋

• tty — the terminal device. that's it, that's the argument. it's the tty you're flushing, bestie 🫶

---

💖 DESCRIPTION 💖

so what it does: it flushes the input buffer. periodt. 🧚

when does it get called? two moments, and both are extremely "we're wrapping up here" energy:

• when the line discipline is being closed 😭
• when the tty layer wants the buffer flushed (eg at hangup) 💀

like it's giving cleanup crew, it's giving "everyone out of the pool." no data left behind. 🔥

---

👑 SEE ALSO 👑

kernel file ./drivers/tty/n_gsm.c — and bestie, the friend group is LARGE. iykyk. every single one of these is invited to the function party:

• 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_output(9)
• gsmld_write_trigger(9), gsmld_write_task(9), gsmld_attach_gsm(9), gsmld_detach_gsm(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)

---

ngl this whole page is like four lines of facts, but the SEE ALSO section ate and left no crumbs 💅

and that's the whole page, bestie! 🫶

sign-off time 🎀 this little gem lives in ./drivers/tty, dated October 2026, and it was brought to you by the gsmld_flush_buffer(9) manual page itself — go drink some water and flush your own buffers 💖✨