comedi_8254_iocb_fn(9)

💅 comedi_8254_iocb_fn(9) 💅

okay so this is from the Kernel API Manual, and it's literally the manual page for comedi_8254_iocb_fn — the call-back function type for 8254 register access. no cap, that's the whole NAME vibe. ✨

✨ SYNOPSIS ✨

       unsigned int comedi_8254_iocb_fn (struct comedi_8254 *i8254 , int dir ,
       unsigned int reg , unsigned int val );

🎀 ARGUMENTS 🎀

• i8254 — pointer to struct comedi_8254. it's giving “here's the 8254 struct, bestie” 💖
• dir — direction, and the values are exact: 0 = read, 1 = write. periodt. 💅
• reg — register number. yes, the actual register number, no guessing 🔥
• val — value to write. that's the value going in when you're writing 🌸

💖 RETURN 💖

Register value when reading, 0 when writing. that's it, that's the return tea ☕✨

🦋 SEE ALSO 🦋

• Kernel file ./include/linux/comedi/comedi_8254.h
• struct comedi_8254(9)

okay that's the whole page, bestie 🫶 — source/version lane: ./include/linux/comedi, date: October 2026, page: comedi_8254_iocb_fn(9). 💖