comedi_check_trigger_arg_is(9)

🎀 NAME 🎀

comedi_check_trigger_arg_is — trivially validate a trigger argument.

Okay so this is the Kernel API Manual page for comedi_check_trigger_arg_is(9), and it’s lowkey a tiny helper with main-character energy: it validates a trigger argument by forcing it to be a value. Bestie, it’s giving “small function, big slay” 💅.

✨ SYNOPSIS ✨

int comedi_check_trigger_arg_is (unsigned int *arg , unsigned int val );

🌸 ARGUMENTS 🌸

• arg — a pointer to the trigger arg you’re validating, bb. It’s the unsigned int * star of the show.
• val — the value that argument should be. Like, the target vibe.

💖 DESCRIPTION 💖

It forces *arg to be val. That’s the whole plot. No cap.

⭐ RETURN ⭐

• 0 — *arg was already val. Iconic, no notes.
• -EINVAL — *arg differed from val. It’s giving mismatch 😭.

🦋 SEE ALSO 🦋

Kernel file: ./include/linux/comedi/comedidev.h. The whole squad:

• struct comedi_subdevice(9)
• struct comedi_buf_page(9)
• struct comedi_buf_map(9)
• struct comedi_async(9)
• enum comedi_cb(9)
• struct comedi_driver(9)
• struct comedi_device(9)
• struct comedi_lrange(9)
• comedi_range_is_bipolar(9)
• comedi_range_is_unipolar(9)
• comedi_range_is_external(9)
• comedi_chan_range_is_bipolar(9)
• comedi_chan_range_is_unipolar(9)
• comedi_chan_range_is_external(9)
• comedi_offset_munge(9)
• comedi_bytes_per_sample(9)
• comedi_sample_shift(9)
• comedi_bytes_to_samples(9)
• comedi_samples_to_bytes(9)
• comedi_check_trigger_src(9)
• comedi_check_trigger_is_unique(9)
• comedi_check_trigger_arg_min(9)
• comedi_check_trigger_arg_max(9)
• comedi_buf_n_bytes_ready(9)
• __comedi_request_region(9)
• comedi_request_region(9)
• module_comedi_driver(9)

source/version: ./include/linux/comedi • date: October 2026 • manual: comedi_check_trigger_arg_is(9) — mwah 💋