mucse_fw_send_cmd_wait_resp(9)

💌 mucse_fw_send_cmd_wait_resp — like, the Kernel API Manual page you didn't know you needed 💌

okay bestie, so this one lives in the Kernel API Manual and it's literally the little messenger girl of the mucse driver — she carries your command over to the firmware and then waits for the reply like a loyal bestie holding your iced coffee. no cap. 💅

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✨ NAME ✨

mucse_fw_send_cmd_wait_resp — send cmd req and wait for response 🎀

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🦋 SYNOPSIS 🦋

int mucse_fw_send_cmd_wait_resp (struct mucse_hw *hw , union
     mbx_fw_cmd_req_u *req , union mbx_fw_cmd_reply_u *reply );

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🌸 ARGUMENTS 🌸

• hw — pointer to the HW structure. the main character's home base, if you will 🏠
• req — pointer to the cmd req structure. the message she's delivering fr fr 💌
• reply — pointer to the fw reply structure. where the answer gets dropped off 🫶

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💖 DESCRIPTION 💖

okay so mucse_fw_send_cmd_wait_resp sends req to the pf-fw mailbox and then waits for the reply from fw. that's it, that's the whole vibe. she's a synchronous queen — no running off before the answer comes back, periodt. ⏳✨

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🔥 RETURN 🔥

0 on success, negative errno on failure. so if you get a negative back, that's your sign to look at it with concern 😭💀

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👑 SEE ALSO 👑

• Kernel file ./drivers/net/ethernet/mucse/rnpgbe/rnpgbe_mbx_fw.c — the source, go read it iykyk 📖
• mucse_mbx_get_info(9)
• mucse_mbx_sync_fw(9)
• mucse_mbx_powerup(9)
• mucse_mbx_reset_hw(9)
• mucse_mbx_get_macaddr(9)

the whole friend group omg 🫶💜

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ngl this is a synchronous mailbox call — it sends and then waits, so don't act surprised when it blocks, bestie 🧚

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and that's the page!! sign-off time: this lil beauty comes from ./drivers/net/ethernet/mucse/r... and it's dated October 2026, so she's future-iconic 🌈⭐💅