mailbox_chan_validate(9)

💖 mailbox_chan_validate(9) 💖

okay bestie, welcome to the mailbox_chan_validate(9) page from the Kernel API Manual ✨ this one's a little icon and it does exactly what it says on the tin — lets talk channel validation 🎀

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✨ NAME ✨

mailbox_chan_validate — validate your transport configuration and map those channels, no cap 💅

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🌸 SYNOPSIS 🌸

int mailbox_chan_validate (struct device *cdev , int *a2p_rx_chan , int
*p2a_chan , int *p2a_rx_chan );

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🦋 ARGUMENTS 🦋

• cdev — a reference to the underlying transport device that's carrying the of_node descriptor we're gonna analyze 🫶
• a2p_rx_chan — a reference to an optional unidirectional channel used for replies on the a2p channel. set it as zero if it's not present, mwah 💋
• p2a_chan — a reference to the optional p2a channel. zero if not present, periodt ⭐
• p2a_rx_chan — a reference to the optional p2a completion channel. yep, zero if not present too 🙈

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🎀 DESCRIPTION 🎀

so first things first: it validates the transport configuration, as described in terms of appropriate to be use in the current configuration ✨ that's the whole vibe, iykyk 💜

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💀 RETURN 💀

0 on Success, or an error 😭

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👑 SEE ALSO 👑

• Kernel file ./drivers/firmware/arm_scmi/transports/mailbox.c
• struct scmi_mailbox(9)

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okay that's the whole page bestie, go validate those channels 💅✨ this came from source ./drivers/firmware/arm_scmi/tr..., dated October 2026, and the header still says mailbox_chan_validate(9) — mwah, bye 🫶🎀🌈