ep93xx_dma_...an_resources(9)

💅 ep93xx_dma_...an_resources(9)

okay so bestie, welcome to the Kernel API Manual ✨ — yes the title up top is literally truncated to ep93xx_dma_...an_resources(9) (the page name got ate by the ellipsis, it's giving "we ran out of column width", iconic honestly). Anyway. This one's a little baby function page and we're gonna slay it together 🫶

🎀 NAME

ep93xx_dma_alloc_chan_resources — allocate resources for the channel 💖

✨ SYNOPSIS

int ep93xx_dma_alloc_chan_resources (struct dma_chan *chan );

🌸 ARGUMENTS

• chan — the channel to allocate resources for, no cap, that's the whole parameter 🌈

🦋 DESCRIPTION

So this function does exactly what it says on the tin: it allocates all the necessary resources for the given DMA channel, and then it hands you back the number of allocated descriptors for that channel 🔥

And if it goes wrong? Negative errno comes back at you 😭 failure vibes only, but like, informative failure vibes 💀

👑 SEE ALSO

Kernel file ./drivers/dma/ep93xx_dma.c — plus the whole friend group, fr fr:

• struct ep93xx_dma_desc(9)
• struct ep93xx_dma_chan(9)
• struct ep93xx_dma_engine(9)
• ep93xx_dma_set_active(9)
• ep93xx_dma_advance_active(9)
• ep93xx_dma_advance_work(9)
• ep93xx_dma_tx_submit(9)
• ep93xx_dma_free_chan_resources(9)
• ep93xx_dma_prep_dma_memcpy(9)
• ep93xx_dma_prep_slave_sg(9)
• ep93xx_dma_prep_dma_cyclic(9)
• ep93xx_dma_synchronize(9)
• ep93xx_dma_terminate_all(9)
• ep93xx_dma_tx_status(9)
• ep93xx_dma_issue_pending(9)

aaand that's the page 🎀 tysm for reading, mwah 💋 — this came to you from ./drivers/dma, dated October 2026, and yeah, the footer still calls it ep93xx_dma_...an_resources(9) because the ellipsis is the main character and it's not giving up its spot 💅✨