cppi5_desc_get_type(9)

✨ cppi5_desc_get_type ✨

okay bestie, welcome to the Kernel API Manual 💅 this one's a lil function called cppi5_desc_get_type — and yes, the name literally spoils it, but let's get into it anyway 🎀

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🌸 NAME 🌸

cppi5_desc_get_type — get the descriptor type, that's it, that's the whole job 🫶

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🦋 SYNOPSIS 🦋

u32 cppi5_desc_get_type (struct cppi5_desc_hdr_t *desc_hdr );

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💖 ARGUMENTS 💖

• desc_hdr — the packet descriptor/TR header you're handing over. it's literally the thing being type-checked, so don't pass it garbage bestie 😭

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⭐ RETURN ⭐

it gives you back a u32 that is the descriptor type — and it'll be one of these three iconic little constants 👑

• CPPI5_INFO0_DESC_TYPE_VAL_HOST
• CPPI5_INFO0_DESC_TYPE_VAL_MONO
• CPPI5_INFO0_DESC_TYPE_VAL_TR

no cap, that's the whole return set. main character energy for a three-value enum 🌈

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💜 SEE ALSO 💜

like the whole ti-cppi5 extended universe lives here, iykyk — the kernel file it's all chillin' in:

• ./include/linux/dma/ti-cppi5.h

and then the entire friend group 🫶:

• struct cppi5_desc_hdr_t(9)
• struct cppi5_host_desc_t(9)
• struct cppi5_desc_epib_t(9)
• struct cppi5_monolithic_desc_t(9)
• cppi5_desc_is_tdcm(9)
• cppi5_desc_get_errflags(9)
• cppi5_desc_get_pktids(9)
• cppi5_desc_set_pktids(9)
• cppi5_desc_set_retpolicy(9)
• cppi5_desc_get_tags_ids(9)
• cppi5_desc_set_tags_ids(9)
• cppi5_hdesc_calc_size(9)
• cppi5_hdesc_init(9)
• cppi5_hdesc_update_flags(9)
• cppi5_hdesc_update_psdata_size(9)
• cppi5_hdesc_get_psdata_size(9)
• cppi5_hdesc_get_pktlen(9)
• cppi5_hdesc_set_pktlen(9)
• cppi5_hdesc_get_psflags(9)
• cppi5_hdesc_set_psflags(9)
• cppi5_hdesc_get_pkttype(9)
• cppi5_hdesc_set_pkttype(9)
• cppi5_hdesc_attach_buf(9)
• cppi5_hdesc_link_hbdesc(9)
• cppi5_hdesc_epib_present(9)
• cppi5_hdesc_get_psdata(9)
• cppi5_hdesc_get_swdata(9)
• enum cppi5_tr_types(9)
• enum cppi5_tr_event_size(9)
• enum cppi5_tr_trigger(9)
• enum cppi5_tr_trigger_type(9)
• struct cppi5_tr_type0_t(9)
• struct cppi5_tr_type1_t(9)
• struct cppi5_tr_type2_t(9)
• struct cppi5_tr_type3_t(9)
• struct cppi5_tr_type15_t(9)
• struct cppi5_tr_resp_t(9)
• enum cppi5_tr_resp_status_type(9)
• enum cppi5_tr_resp_status_submission(9)
• enum cppi5_tr_resp_status_unsupported(9)
• cppi5_trdesc_calc_size(9)
• cppi5_trdesc_init(9)
• cppi5_tr_init(9)
• cppi5_tr_set_trigger(9)
• cppi5_tr_csf_set(9)

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lowkey a serve that one header file has this many friends 💀 go read ti-cppi5.h, it's giving lore drop

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okay that's a wrap, bestie 🎀 this page lives in ./include/linux/dma and it's stamped October 2026 — so like, future-core of it all ✨ mwah, slay, bye 💅💖