device_family(9)

💅 device_family — Kernel API Manual ✨

okay so bestie, welcome to device_family(9) — this is the Kernel API Manual page and it's literally about grabbing a pointer. let's get into it 🫶

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🌸 NAME 🌸

device_family — Retrieve a pointer on &struct w1_therm_family_converter

like, that's the whole vibe. it retrieves a pointer. on that struct. slay.

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✨ SYNOPSIS ✨

struct w1_therm_family_converter * device_family (struct w1_slave *sl );

copy it exactly, don't @ me 💅

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🎀 ARGUMENTS 🎀

• sl — the slave to retrieve the device specific structure for. that's it, that's the whole argument, she's lowkey simple and we respect it 👑

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🦋 RETURN 🦋

it hands you back a pointer to the slave's family converter. and if the family isn't known? it returns NULL — no cap, that's the whole deal 🙈

heads up bestie: NULL is a real possible answer here, so maybe don't just yolo-dereference it, mkay? 💀

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🔥 SEE ALSO 🔥

Kernel file ./drivers/w1/slaves/w1_therm.c struct — the main character herself 👑

and then the whole friend group, in order, fr fr:

• w1_therm_family_converter(9)
• struct w1_therm_family_data(9)
• struct therm_info(9)
• reset_select_slave(9)
• convert_t(9)
• read_scratchpad(9)
• write_scratchpad(9)
• copy_scratchpad(9)
• recall_eeprom(9)
• read_powermode(9)
• trigger_bulk_read(9)
• w1_therm_add_slave(9)
• w1_therm_remove_slave(9)
• w1_DS18B20_convert_temp(9)
• w1_DS18S20_convert_temp(9)
• w1_DS1825_convert_temp(9)
• bus_mutex_lock(9)
• check_family_data(9)
• bulk_read_support(9)
• conversion_time(9)
• temperature_from_RAM(9)
• int_to_short(9)
• w1_poll_completion(9)

that's the whole squad, iykyk 🌈⭐

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and that's the page bestie!! 💖 this iconic little writeup lives over in ./drivers/w1/slaves and it's stamped October 2026 — periodt, go read the kernel source, ily, bye 🧚🎀