geni_se_tx_dma_prep(9)

💅 geni_se_tx_dma_prep(9) — Kernel API Manual

okay so bestie, welcome to the geni_se_tx_dma_prep(9) page from the Kernel API Manual — it’s giving “kernel prep function but make it cute,” and we are literally covering every single detail, no skips, no cap ✨

🎀 NAME

geni_se_tx_dma_prep — Prepare the serial engine for TX DMA transfer. That’s the assignment, and it ate. 💅

✨ SYNOPSIS

the signature is giving:

int geni_se_tx_dma_prep (struct geni_se *se , void *buf , size_t len ,
dma_addr_t *iova );

🫶 ARGUMENTS

• se — pointer to the concerned serial engine, bestie 🌸
• buf — pointer to the TX buffer, no cap 🎀
• len — length of the TX buffer, literally 📏
• iova — pointer to store the mapped DMA address 🦋

🦋 DESCRIPTION

This function is used to prepare the buffers for DMA TX. That’s the whole main character assignment: prep the buffers, slay, done. 💅

🔥 RETURN

0 on success, standard Linux error codes on failure — fr fr ✨

👑 SEE ALSO

the whole link squad, in order, no skipping:

• Kernel file ./drivers/soc/qcom/qcom-geni-se.c
• Overview(9)
• Hardware description(9)
• Software description(9)
• struct geni_wrapper(9)
• struct geni_se_desc(9)
• struct se_fw_hdr(9)
• geni_se_get_qup_hw_version(9)
• geni_se_init(9)
• geni_se_select_mode(9)
• Overview(9) — yes, it’s here again, bestie 💅
• geni_se_config_packing(9)
• geni_se_resources_off(9)
• geni_se_resources_on(9)
• geni_se_clk_tbl_get(9)
• geni_se_clk_freq_match(9)
• geni_se_tx_init_dma(9)
• geni_se_rx_init_dma(9)
• geni_se_rx_dma_prep(9)
• geni_se_tx_dma_unprep(9)
• geni_se_rx_dma_unprep(9)
• geni_icc_set_bw_ab(9)
• geni_se_resources_deactivate(9)
• geni_se_resources_activate(9)
• geni_se_set_perf_level(9)
• geni_se_set_perf_opp(9)
• geni_se_domain_attach(9)
• geni_se_resources_init(9)
• geni_find_protocol_fw(9)
• geni_configure_xfer_mode(9)
• geni_enable_interrupts(9)
• geni_write_fw_revision(9)
• geni_load_se_fw(9)
• geni_load_se_firmware(9)

okay bestie, that’s the whole page 💖 it comes from ./drivers/soc/qcom, it’s dated October 2026, and it’s still serving geni_se_tx_dma_prep(9) energy — periodt 🎀✨