__qcom_smd_send(9)

🌸 NAME 🌸

__qcom_smd_send — write data to smd channel 💅

okay so real quick, bestie: this page is from the Kernel API Manual, and it's all about __qcom_smd_send. It's giving "let's push some bytes into an smd channel" energy, and we're gonna get into it ✨

🎀 SYNOPSIS 🎀

int __qcom_smd_send (struct qcom_smd_channel *channel , const void *data
, int len , bool wait );

🦋 ARGUMENTS 🦋

• channel — channel handle 🫶
• data — buffer of data to write 💖
• len — number of bytes to write 🎀
• wait — flag to indicate if write can wait ⭐

✨ DESCRIPTION ✨

This is a blocking write of len bytes into the channel's tx ring buffer, and then it signals the remote end. Like, it's not gonna just shove stuff in and dip — no ma'am.

It will sleep until there is enough space available in the tx buffer, utilizing the fBLOCKREADINTR signaling mechanism to avoid polling. That's the whole vibe: wait for room, don't sit there spinning and checking over and over. Iconic, honestly 😭💜

🌈 SEE ALSO 🌈

• Kernel file ./drivers/rpmsg/qcom_smd.c
• struct qcom_smd_edge(9)
• struct qcom_smd_channel(9)
• struct qcom_smd_alloc_entry(9)
• qcom_smd_register_edge(9)
• qcom_smd_unregister_edge(9)

okay bye bestie 💖 cute little sign-off time: this page's footer says source/version is ./drivers/rpmsg, date is October 2026, and the page is __qcom_smd_send(9) — with the Kernel API Manual name already living near the top, periodt ✨🦋