dmaengine_desc_get_callback(9)

✨ NAME ✨

okay bestie, welcome to dmaengine_desc_get_callback(9) from the Kernel API Manual 💖

dmaengine_desc_get_callback — get the passed in callback function. That's literally the whole vibe 💅

🌸 SYNOPSIS 🌸

void dmaengine_desc_get_callback (struct dma_async_tx_descriptor *tx ,
       struct dmaengine_desc_callback *cb );

🎀 ARGUMENTS 🎀

• tx — tx descriptor. iconic little descriptor energy ✨
• cb — temp struct to hold the callback info 🫶

💅 DESCRIPTION 💅

Fill the passed in cb struct with what's available in the passed in tx descriptor struct. No locking is required. Not a little bit of locking, not a sneaky lock — none 😌 periodt.

🔥 SEE ALSO 🔥

• Kernel file ./drivers/dma/dmaengine.h
• dma_cookie_init(9)
• dma_cookie_assign(9)
• dma_cookie_complete(9)
• dma_cookie_status(9)
• dmaengine_desc_callback_invoke(9)
• dmaengine_desc_get_callback_invoke(9)
• dmaengine_desc_callback_valid(9)

and that's the cute little sign-off, bestie 🎀 the source/version footer says ./drivers/dma, and the date is October 2026 🫶💖