msgdma_alloc_chan_resources(9)

💖 msgdma_alloc_chan_resources(9) 💖

okay bestie, this is the Kernel API Manual entry for msgdma_alloc_chan_resources(9) — and it’s giving “allocate channel resources” main character energy. no cap, it’s a tiny page, but every detail stays. 🎀

✨ NAME ✨

msgdma_alloc_chan_resources — Allocate channel resources. literally the whole vibe of this function. 💅

🌸 SYNOPSIS 🌸

int msgdma_alloc_chan_resources (struct dma_chan *dchan );

🦋 ARGUMENTS 🦋

• dchan — DMA channel. that’s the one and only argument, bestie. 🫶

⭐ RETURN ⭐

Number of descriptors on success, and failure value on error. yes ma’am: success gives you the descriptor count, error gives you a failure value — periodt. 😭

🔥 SEE ALSO 🔥

• Kernel file ./drivers/dma/altera-msgdma.c
• struct msgdma_extended_desc(9)
• struct msgdma_sw_desc(9)
• msgdma_get_descriptor(9)
• msgdma_free_descriptor(9)
• msgdma_free_desc_list(9)
• msgdma_desc_config(9)
• msgdma_desc_config_eod(9)
• msgdma_tx_submit(9)
• msgdma_prep_memcpy(9)
• msgdma_prep_slave_sg(9)
• msgdma_copy_desc_to_fifo(9)
• msgdma_start_transfer(9)
• msgdma_issue_pending(9)
• msgdma_chan_desc_cleanup(9)
• msgdma_complete_descriptor(9)
• msgdma_free_descriptors(9)
• msgdma_free_chan_resources(9)
• msgdma_tasklet(9)
• msgdma_irq_handler(9)
• msgdma_dev_remove(9)
• msgdma_probe(9)
• msgdma_remove(9)

no need to memorise the whole squad list, but it’s all here — every single reference, untouched. 💜

signed, sealed, and slayed by the source/version ./drivers/dma, dated October 2026, for msgdma_alloc_chan_resources(9) 💅✨