gsmld_write_wakeup(9)

okay bestie, pull up a chair — this is gsmld_write_wakeup(9), straight outta the Kernel API Manual section. It's short, it's sweet, and it's literally the async I/O notifier. 💖

🌸 NAME 🌸

gsmld_write_wakeup - asynchronous I/O notifier ✨

✨ SYNOPSIS ✨

void gsmld_write_wakeup (struct tty_struct *tty );

🎀 ARGUMENTS 🎀

• tty — the tty device 🫶 (yep, that struct tty_struct * tty device from the synopsis).

💅 DESCRIPTION 💅

Okay so listen: this one is required for the ptys, serial driver, etc. Why? Because processes that attach themselves to the master and rely on ASYNC IO must be woken up. That's the whole vibe — no cap. 😭✨

not me being the little notifier making sure the ASYNC IO girlies get their wakeup call 💅

🦋 SEE ALSO 🦋

Kernel file: ./drivers/tty/n_gsm.c — and bestie, here's the entire friend group, not a single one skipped:

• 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_flush_buffer(9), gsmld_close(9), gsmld_open(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)

source/version: ./drivers/tty · date: October 2026 · page: gsmld_write_wakeup(9) — okay that's the tea, love u, bye bestie 💖🎀