STRUCT COMEDI_BUF_PAGE(9)

💖 struct comedi_buf_page(9) 💖

okay so bestie, welcome to the Kernel API Manual entry for struct comedi_buf_page — she's a little struct in struct comedi_buf_page(9) land and honestly? she's iconic. her whole job is literally just to describe a page of a COMEDI buffer. that's it. that's the gig. 🎀

✨ NAME ✨

struct comedi_buf_page — describe a page of a COMEDI buffer 🦋

✨ SYNOPSIS ✨

ok so here's the whole entire vibe, no cap, copy it exactly:

struct comedi_buf_page {
    void *virt_addr;
    dma_addr_t dma_addr;
 };

like... two fields. two. and yet she ate. 💅

🌸 Members 🌸

• virt_addr — the kernel address of the page. that's the one you poke around with when you're living your kernel-address truth ✨
• dma_addr — the DMA address of the page if it's in DMA coherent memory. note the "if" bestie, it's doing a LOT of work there 🙈

⭐ SEE ALSO ⭐

ok this is the part where the manpage just goes absolutely feral and lists literally everyone she knows. she's a social butterfly fr fr. here's the whole squad, in order, don't skip anybody, that would be rude 💀:

Kernel file ./include/linux/comedi/comedidev.h 💖 and then:

• struct comedi_subdevice(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_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)

like, twenty-eight friends and a header file. main character energy with a whole entourage 👑🔥

and that's the whole page bestie!! 🫶 this came out of the kernel source at ./include/linux/comedi and she's stamped October 2026 — so yes, struct comedi_buf_page(9), future-dated and thriving 🌈✨ mwah 💋