hwicap_type_1_read(9)

🌈 hwicap_type_1_read(9) — Kernel API Manual 🌈

okay bestie, welcome to the hwicap_type_1_read(9) page in the Kernel API Manual. this one is short, sweet, and literally all about making a Type 1 read packet header 💖

🌸 NAME 🌸

hwicap_type_1_read — Generates a Type 1 read packet header.

✨ SYNOPSIS ✨

u32 hwicap_type_1_read (u32 reg );

🎀 ARGUMENTS 🎀

• reg — the address of the register to be read back. that's the one, bestie 🫶

💅 RETURN 💅

so, this function generates a Type 1 read packet header, periodt 🔥 that header is used to indirectly read registers in the configuration logic ✨

ngl, the packet must then be sent through the icap device, and a return packet received with the information. fr fr, that's the whole flow 💫

this is just the header-generation part, bestie — the packet still has to go out and come back with the info 🙈

🦋 SEE ALSO 🦋

• Kernel file ./drivers/char/xilinx_hwicap/xilinx_hwicap.h
• hwicap_type_1_write(9)

and that's the page, bestie 💖 mwah! source/version: ./drivers/char/xilinx_hwicap; date: October 2026.