comedi_range_is_unipolar(9)

✨ NAME ✨

okay bestie, this is comedi_range_is_unipolar(9) from the Kernel API Manual, and it's literally the little function that tests if a subdevice range is unipolar. that's the whole vibe 💅

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🫶 SYNOPSIS 🫶

bool comedi_range_is_unipolar (struct comedi_subdevice *s , unsigned int
range );

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💅 ARGUMENTS 💅

• s — a COMEDI subdevice. hello main character 🫶
• range — the index of a range within a range table. lowkey important ✨

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🎀 DESCRIPTION 🎀

It tests whether a range is unipolar by checking whether its minimum value is at least 0. that's the whole test, no cap 💅

It assumes range is valid. no validation arc, bestie.

It does not work for subdevices using a channel-specific range table list. so don't try it there, fr fr 😭

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🌈 RETURN 🌈

• true — if the range is unipolar. slay ✨
• false — if the range is bipolar. different vibe 🦋

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🔥 SEE ALSO 🔥

kernel file: ./include/linux/comedi/comedidev.h — go peek, bestie 👑

• 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_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_is(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)

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okay that's the whole page, bestie source/version: ./include/linux/comedi; date: October 2026 — comedi_range_is_unipolar(9) signing off, mwah 💋✨