vme_dma_list_add(9)

🎀 NAME 🎀

vme_dma_list_add — okay bestie, this is the vme_dma_list_add(9) page from the Kernel API Manual, and its whole job is adding an entry to a VME DMA list. 💅✨

✨ SYNOPSIS ✨

the signature, untouched, no cap:

int vme_dma_list_add (struct vme_dma_list *list , struct vme_dma_attr *src , struct vme_dma_attr *dest , size_t count );

🫶 ARGUMENTS 🫶

• list — pointer to VME list. Yes, the list you're adding to, bestie.
• src — pointer to DMA list attribute to use as source. 🦋
• dest — pointer to DMA list attribute to use as destination. 🌸
• count — number of bytes to transfer. Bytes, not vibes. 💅

🌈 DESCRIPTION 🌈

So you're adding an entry to the provided VME DMA list. To make that entry happen, it needs pointers to source and destination DMA attributes and a count — that's the byte count. 🫶

⚠️ heads up bestie: the attributes supported as source and destinations for transfers are hardware dependent. This is not a universal vibe; the hardware has opinions. 😭

👑 RETURN 👑

Zero on success, periodt. 💖

You get -EINVAL if the operation is not supported on this device, or if the link list has already been submitted for execution. Hardware specific errors also possible — don't shoot the messenger 💀.

🦋 SEE ALSO 🦋

Kernel file ./drivers/staging/vme_user/vme.c — and the whole friend group: vme_alloc_consistent(9), vme_free_consistent(9), vme_get_size(9), vme_slave_request(9), vme_slave_set(9), vme_slave_get(9), vme_slave_free(9), vme_master_request(9), vme_master_set(9), vme_master_get(9), vme_master_read(9), vme_master_write(9), vme_master_rmw(9), vme_master_mmap_prepare(9), vme_master_free(9), vme_dma_request(9), vme_new_dma_list(9), vme_dma_pattern_attribute(9), vme_dma_pci_attribute(9), vme_dma_vme_attribute(9), vme_dma_free_attribute(9), vme_dma_list_exec(9), vme_dma_list_free(9), vme_dma_free(9), vme_irq_request(9), vme_irq_free(9), vme_irq_generate(9), vme_lm_request(9), vme_lm_count(9), vme_lm_set(9), vme_lm_get(9), vme_lm_attach(9), vme_lm_detach(9), vme_lm_free(9), vme_slot_num(9), vme_bus_num(9), vme_register_driver(9), vme_unregister_driver(9).

mwah 💋 source/version: ./drivers/staging/vme_user · date: October 2026 — byeee bestie 🫶