w1_DS18S20_convert_temp(9)

🌡️ w1_DS18S20_convert_temp — NAME

okay so bestie, this is a page from the Kernel API Manual (section 9, kernel-space vibes only 💅) and it's all about w1_DS18S20_convert_temp — the temperature computation for DS18S20. literally that's the whole name, that's the whole job 🎀

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✨ SYNOPSIS ✨

int w1_DS18S20_convert_temp (u8 rom[9] );

like, it takes a u8 array of 9 and hands you back an int. cute, clean, no notes 🫶

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🌸 ARGUMENTS 🌸

• rom — the data you read off the device RAM, bestie. and when we say data we mean 8 data bytes + 1 CRC byte — that's 9 total, which is why the array is [9], the math is mathing ✨

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🦋 DESCRIPTION 🦋

So like… you can call this for any DS18S20 compliant device. that's it. that's the whole vibe check. any DS18S20 compliant device, no cap 💜

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👑 RETURN 👑

the value comes back in millidegrees Celsius 🔥 so like, not degrees, *milli*degrees. read the units, queen, we've all been burned by that before 😭

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⭐ SEE ALSO ⭐

the whole friend group, assembled 🫶 also peep the kernel file ./drivers/w1/slaves/w1_therm.c and its struct — that's where the lore lives:

• 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_DS1825_convert_temp(9)
• device_family(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)

like yes, it's a long list, but every single one of them is invited to the party 🎀

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and that's the page!! mwah 💋 this one lives in ./drivers/w1/slaves, and the version is October 2026 — go forth and convert those temps, bestie, you're gonna slay 🌈💖