dpaa2_fd_set_len(9)

💅 dpaa2_fd_set_len — like, the NAME section, bestie

okay so picture this: you've got a frame descriptor and you need to put a length in it. that's the whole gig. dpaa2_fd_set_len — Set the length field of frame descriptor ✨ it's a kernel API manual situation, and honestly? she ate. 🎀

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✨ SYNOPSIS ✨

void dpaa2_fd_set_len (struct dpaa2_fd *fd , u32 len );

look at her. void. no return value, no drama, she just does the thing and dips. 💅

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🫶 ARGUMENTS 🫶

two arguments, both iconic, both required:

• fd — the given frame descriptor. like, the actual frame descriptor you're working with. this is the main character of the operation, no cap. 👑
• len — the length needs to be set in frame descriptor. yes bestie, this is literally the number that's about to get written into that bad boy. 🍓

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🌈 SEE ALSO 🌈

okay this is the part where I need you to stay with me, because this list is long and I'm not skipping a single one of these, fr fr. every single one matters. 🧚

the header file + the big picture:

• Kernel file ./include/soc/fsl/dpaa2-fd.h — DPAA2 FD - Frame Descriptor APIs for DPAA2(9)
• struct dpaa2_fd(9) — the struct herself 💖

the dpaa2_fd getters and setters (the whole squad):

• dpaa2_fd_get_addr(9)
• dpaa2_fd_set_addr(9)
• dpaa2_fd_get_frc(9)
• dpaa2_fd_set_frc(9)
• dpaa2_fd_get_ctrl(9)
• dpaa2_fd_set_ctrl(9)
• dpaa2_fd_get_flc(9)
• dpaa2_fd_set_flc(9)
• dpaa2_fd_get_len(9) — the reverse twin of the page you're on rn 🔥
• dpaa2_fd_get_offset(9)
• dpaa2_fd_set_offset(9)
• dpaa2_fd_get_format(9)
• dpaa2_fd_set_format(9)
• dpaa2_fd_get_bpid(9)
• dpaa2_fd_set_bpid(9)

the scatter-gather side of the family:

• struct dpaa2_sg_entry(9)
• dpaa2_sg_get_addr(9)
• dpaa2_sg_set_addr(9)
• dpaa2_sg_get_len(9)
• dpaa2_sg_set_len(9)
• dpaa2_sg_get_offset(9)
• dpaa2_sg_set_offset(9)
• dpaa2_sg_get_format(9)
• dpaa2_sg_set_format(9)
• dpaa2_sg_get_bpid(9)
• dpaa2_sg_set_bpid(9)
• dpaa2_sg_is_final(9)
• dpaa2_sg_set_final(9)

and the frame-list crew:

• struct dpaa2_fl_entry(9)
• dpaa2_fl_get_addr(9)
• dpaa2_fl_set_addr(9)
• dpaa2_fl_get_frc(9)
• dpaa2_fl_set_frc(9)
• dpaa2_fl_get_ctrl(9)
• dpaa2_fl_set_ctrl(9)
• dpaa2_fl_get_flc(9)
• dpaa2_fl_set_flc(9)
• dpaa2_fl_get_len(9)
• dpaa2_fl_set_len(9)
• dpaa2_fl_get_offset(9)
• dpaa2_fl_set_offset(9)
• dpaa2_fl_get_format(9)
• dpaa2_fl_set_format(9)
• dpaa2_fl_get_bpid(9)
• dpaa2_fl_set_bpid(9)
• dpaa2_fl_is_final(9)
• dpaa2_fl_set_final(9)

that's forty-something cross-references and not one of them got left behind. we don't do skipped references in this house. 🙈

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🦋 the sign-off 🦋

this lil beauty lives in ./include/soc/fsl, and she's dated October 2026. go read the source, bestie, it's all there. 💜

stay hydrated, set your lengths correctly, and may your frame descriptors always be exactly as long as you say they are. mwah. 💋