dvb_unregister_frontend(9)

💅 dvb_unregister_frontend(9)

okay bestie, welcome to the Kernel API Manual — this one's a dvb_unregister_frontend(9) page and it's literally the breakup episode for a DVB frontend 🎀

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✨ NAME ✨

dvb_unregister_frontend — the function that unregisters a DVB frontend. it's giving "we're done here" energy 💀

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🌸 SYNOPSIS 🌸

int dvb_unregister_frontend (struct dvb_frontend *fe );

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🦋 ARGUMENTS 🦋

• fe — pointer to struct dvb_frontend, aka the frontend in question. the main character we're sending off 👑

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⭐ DESCRIPTION ⭐

so here's the tea ☕ — this function stops the frontend kthread, calls dvb_unregister_device, and frees the private frontend data that was allocated by dvb_register_frontend. clean, efficient, done 🫶

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💜 NOTE 💜

⚠️ important bestie, do NOT skip this: this function doesn't free the memory allocated by the demod, by the SEC driver, and by the tuner. nope, not those. 🙈

in order to free that memory, you need an explicit call to dvb_frontend_detach, after calling this function. order matters, no cap 💅

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🎀 SEE ALSO 🎀

kernel file ./include/media/dvb_frontend.h struct — plus the whole friend group:

• dvb_frontend_tune_settings(9)
• struct dvb_tuner_info(9)
• struct analog_parameters(9)
• enum dvbfe_algo(9)
• enum dvbfe_search(9)
• struct dvb_tuner_ops(9)
• struct analog_demod_info(9)
• struct analog_demod_ops(9)
• struct dvb_frontend_internal_info(9)
• struct dvb_frontend_ops(9)
• struct dtv_frontend_properties(9)
• struct dvb_frontend(9)
• dvb_register_frontend(9)
• dvb_frontend_detach(9)
• dvb_frontend_suspend(9)
• dvb_frontend_resume(9)
• dvb_frontend_reinitialise(9)
• dvb_frontend_sleep_until(9)

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that's the whole page, bestie — it lives in ./include/media, dated October 2026, and it's part of the Kernel API Manual set. slay, go free that memory properly 💖✨🧚