pxa_init_dma_channel(9)

🎀 NAME 🎀

okay so welcome to the pxa_init_dma_channel(9) page from the Kernel API Manual, bestie 💖 the main character here is pxa_init_dma_channel — init dma descriptors. that's the whole vibe. periodt.

✨ SYNOPSIS ✨

int pxa_init_dma_channel (struct pxa_camera_dev *pcdev , struct
       pxa_buffer *buf , int channel , struct scatterlist *sg , int sglen );

💅 ARGUMENTS 💅

these are the little parameters she wants, and yes every single one matters 🫶

• pcdev — pxa camera device
• buf — pxa camera buffer
• channel — dma channel (0 => 'Y', 1 => 'U', 2 => 'V')
• sg — dma scatter list
• sglen — dma scatter list length

🌸 DESCRIPTION 🌸

okay so what does she actually do? she prepares the pxa dma descriptors to transfer one camera channel. that's it, that's the job 🎀

and the return vibe is literally: 0 if success, or -ENOMEM if no memory is available. no cap, that's the whole deal.

👑 SEE ALSO 👑

peep these besties for more context, iykyk 🌈

• Kernel file ./drivers/media/platform/intel/pxa_camera.c
• enum pxa_mbus_packing(9)
• enum pxa_mbus_order(9)
• enum pxa_mbus_layout(9)
• struct pxa_mbus_pixelfmt(9)
• struct pxa_mbus_lookup(9)
• struct pxa_camera_format_xlate(9)
• pxa_dma_start_channels(9)
• pxa_camera_start_capture(9)
• pxa_camera_check_link_miss(9)

byeee 💖 this page's source/version is ./drivers/media/platform/intel, dated October 2026, and it's literally pxa_init_dma_channel(9) — signing off with a little sparkle 🫶✨