ep93xx_dma_advance_active(9)

💅 ep93xx_dma_advance_active(9)

okay so this is a page from the Kernel API Manual, bestie — yes, the actual kernel docs, we're doing Big Kernel Energy today 🫶

✨ NAME ✨

ep93xx_dma_advance_active — advances to the next active descriptor 🎀

🌸 SYNOPSIS 🌸

bool ep93xx_dma_advance_active (struct ep93xx_dma_chan *edmac );

🦋 ARGUMENTS 🦋

• edmac — the channel, that's it, that's the whole vibe ✨

👑 DESCRIPTION 👑

So the function advances the active descriptor to the next one in edmac->active, and it returns true if we still have descriptors in the chain to process. Otherwise? It returns false. Simple as that, no cap 💯

When the channel is in cyclic mode, it always returns true — like, always always, that's just how it is, lowkey iconic of it 🌈

heads up bestie: this one is called with edmac->lock held and interrupts disabled 🙈 so don't be out here doing anything cute with it, mkay

🔥 SEE ALSO 🔥

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

• struct ep93xx_dma_desc(9)
• struct ep93xx_dma_chan(9)
• struct ep93xx_dma_engine(9)
• ep93xx_dma_set_active(9)
• ep93xx_dma_advance_work(9)
• ep93xx_dma_tx_submit(9)
• ep93xx_dma_alloc_chan_resources(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)

and that's the whole page, bestie!! 💖 this little beauty lives over in ./drivers/dma and was dated October 2026, so yeah — go forth and advance those descriptors, you absolute main character 👑✨🍓