STRUCT IPAQ_MICRO_MSG(9)

🎀 struct ipaq_micro_msg(9) 🎀

okay so welcome to the Kernel API Manual entry for struct ipaq_micro_msg(9), bestie. This is the manual page for the struct itself, and I'm obsessed with how clean it is. We're keeping every field, every size macro, and every SEE ALSO reference exactly where it belongs. no cap, fr fr. 💅

✨ NAME ✨

struct ipaq_micro_msg — message to the iPAQ microcontroller. That's it, that's the main character energy: it's a message, it's for the iPAQ microcontroller, and it's lowkey iconic. 🦋

🌸 SYNOPSIS 🌸

slay, here's the exact shape, bestie — do not come for the semicolons, they ate:

struct ipaq_micro_msg {
    u8 id;
    u8 tx_len;
    u8 tx_data[TX_BUF_SIZE];
    u8 rx_len;
    u8 rx_data[RX_BUF_SIZE];
    struct completion ack;
    struct list_head node;
 };

not me double-checking that TX_BUF_SIZE and RX_BUF_SIZE stayed exactly as written. periodt. 🎀

🦋 Members 🦋

vibe check, here's every member, no skips, no cap:

• id — the 4-bit ID of the message. iconic little identifier. 🎀
• tx_len — length of TX data. literally how long the TX data is. ✨
• tx_data — TX data to send. that's the stuff going out, bestie. 💌
• rx_len — length of received RX data. yep, the received RX data's length. 🌸
• rx_data — RX data to receive. the incoming data slot, periodt. 🦋
• ack — a completion that will be completed when RX is complete. the way that ack waits for RX to finish is highkey its whole thing. 💅
• node — list node if message gets queued. if it gets queued, this is the list node. iykyk. 🔥

💖 SEE ALSO 💖

go read these too, bestie — they're giving linked lore:

• Kernel file ./include/linux/mfd/ipaq-micro.h — struct ipaq_micro_txdev(9), struct ipaq_micro_rxdev(9), struct ipaq_micro(9)

mwah 💋 this page's source/version line is ./include/linux/mfd, dated October 2026, and yes it's still the struct ipaq_micro_msg(9) manual page. bye bestie, go read the struct fr fr 🫶