mucse_check_for_msg_pf(9)

✨ mucse_check_for_msg_pf(9) ✨

okay so bestie, welcome to the Kernel API Manual — this one lives in section 9 of the mucse manual, and it's literally just a little vibe check on your firmware mailbox, no cap 💌

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🌸 NAME 🌸

mucse_check_for_msg_pf — check to see if the fw has sent mail 🎀

Like, is there a message in your inbox from the firmware? This function is the inbox refresh button. Obsessed.

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🦋 SYNOPSIS 🦋

int mucse_check_for_msg_pf (struct mucse_hw *hw );

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💅 ARGUMENTS 💅

• hw — pointer to the HW structure. your hardware bestie, the one holding all the state 🫶

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⭐ RETURN ⭐

Returns 0 if the fw has set the Status bit — slay, there's mail 💖 — or else -EIO. periodt.

ngl, -EIO is the "bestie I tried to read and it did not go well" of return codes 😭

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👑 SEE ALSO 👑

Kernel file ./drivers/net/ethernet/mucse/rnpgbe/rnpgbe_mbx.c — that's where the whole mailbox friend group hangs out ✨

• mbx_data_rd32(9)
• mbx_data_wr32(9)
• mbx_ctrl_rd32(9)
• mbx_ctrl_wr32(9)
• mucse_mbx_get_lock_pf(9)
• mucse_obtain_mbx_lock_pf(9)
• mucse_release_mbx_lock_pf(9)
• mucse_mbx_get_fwreq(9)
• mucse_mbx_inc_pf_ack(9)
• mucse_read_mbx_pf(9)
• mucse_poll_for_msg(9)
• mucse_poll_and_read_mbx(9)
• mucse_mbx_get_fwack(9)
• mucse_mbx_inc_pf_req(9)
• mucse_write_mbx_pf(9)
• mucse_check_for_ack_pf(9)
• mucse_poll_for_ack(9)
• mucse_write_and_wait_ack_mbx(9)
• mucse_mbx_reset(9)
• mucse_init_mbx_params_pf(9)

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mwah 💋 this iconic little page came from ./drivers/net/ethernet/mucse/r... and it's dated October 2026 — and the manual name is, of course, mucse_check_for_msg_pf(9), as it should be. go check your mail, bestie 🧚💜