ENUM I2C_ATR_FLAGS(9)

💖 enum i2c_atr_flags(9) 💖

hey bestie!! welcome to the Kernel API Manual page for enum i2c_atr_flags(9) — this is the flags situation for an I2C ATR driver, and it’s lowkey iconic. no cap, we’re keeping every constant and every SEE ALSO link exactly where it belongs. 🫶

✨ NAME ✨

enum i2c_atr_flags — flags for an I2C ATR driver. slay.

✨ SYNOPSIS ✨

here’s the whole enum, bestie — copy it exactly, don’t touch the commas:

       enum i2c_atr_flags {
           I2C_ATR_F_STATIC ,
           I2C_ATR_F_PASSTHROUGH

       };

🧚 Constants 🧚

• I2C_ATR_F_STATIC — this means the ATR does not support dynamic mapping, so you use static mapping instead. Mappings only get added or removed when devices are added to or removed from a child bus. because of that, your ATR pool has to be big enough to accommodate every device you expect to be added to the child buses. plan accordingly, bestie 💅
• I2C_ATR_F_PASSTHROUGH — this one lets unmapped incoming addresses pass through. yup, that’s the whole vibe.

🌈 SEE ALSO 🌈

okay so if you want the full lore, go peek at the Kernel file ./include/linux/i2c-atr.h, and then check out these absolute icons:

• struct i2c_atr_ops(9)
• struct i2c_atr_adap_desc(9)
• i2c_atr_new(9)
• i2c_atr_delete(9)
• i2c_atr_add_adapter(9)
• i2c_atr_del_adapter(9)
• i2c_atr_set_driver_data(9)
• i2c_atr_get_driver_data(9)

mwah 💋 that’s the whole page — sourced from ./include/linux, dated October 2026, from the Kernel API Manual. go be amazing with your I2C ATR flags, bestie!! 🌸✨