wx_write_posted_mbx(9)

💅 wx_write_posted_mbx(9)

okay so bestie, welcome to the Kernel API Manual — section 9, kernel-space girlies only, no userland peasants allowed 💖. Today's main character is wx_write_posted_mbx(9), and honestly? She's a little messenger girl who knocks on the mailbox, drops off your note, and then waits until somebody says "yeah I got it" before she can relax. Iconic behavior, truly.

✨ NAME ✨

wx_write_posted_mbx — write a message to the mailbox, and wait for the ack 🫶

🌸 SYNOPSIS 🌸

int wx_write_posted_mbx (struct wx *wx , u32 *msg , u16 size );

🎀 ARGUMENTS 🎀

• wx — pointer to the HW structure. like, the hardware's whole vibe, you hand it over and she does her thing 🦋
• msg — the message buffer. this is your lil note, the actual tea you're delivering ☕
• size — length of buffer. how many bytes of tea, fr fr 📏

👑 RETURN 👑

returns 0 if it successfully copied the message into the buffer and received an ack to that message within the delay * timeout period. no cap — zero means slay, she did it, note delivered, ack received ✅

ngl if you don't get that 0 back, the vibe check failed — either the copy didn't happen or that ack ghosted you past the delay * timeout window 😭

💜 SEE ALSO 💜

• Kernel file ./drivers/net/ethernet/wangxun/libwx/wx_mbx.c — the source, go read her, she's right there 📖
• wx_obtain_mbx_lock_pf(9)
• wx_check_for_ack_pf(9)
• wx_check_for_msg_pf(9)
• wx_write_mbx_pf(9)
• wx_read_mbx_pf(9)
• wx_check_for_rst_pf(9)
• wx_obtain_mbx_lock_vf(9)
• wx_check_for_ack_vf(9)
• wx_check_for_msg_vf(9)
• wx_check_for_rst_vf(9)
• wx_poll_for_msg(9)
• wx_poll_for_ack(9)
• wx_read_posted_mbx(9)
• wx_write_mbx_vf(9)
• wx_read_mbx_vf(9)

and that's the whole page, bestie, you ate that 💅✨

this lil masterpiece comes to you from ./drivers/net/ethernet/wangxun..., dated October 2026, and yeah, she's filed under wx_write_posted_mbx(9) — mwah, take care of her 🎀🦋💖