idpf_ptp_adj_dev_clk_time(9)

💅 NAME 💅

okay bestie, this page is idpf_ptp_adj_dev_clk_time(9) from the Kernel API Manual — and the function is literally idpf_ptp_adj_dev_clk_time — Send virtchnl adj device clock time message. yup, that’s the whole name line, no cap ✨

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✨ SYNOPSIS ✨

int idpf_ptp_adj_dev_clk_time (struct idpf_adapter *adapter , s64 delta
);

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🎀 ARGUMENTS 🎀

• adapter — Driver specific private structure. lowkey the main character of this call 🫶
• delta — Offset in nanoseconds to adjust the time by. yes, nanoseconds, stay precise bestie ⏱️

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🌸 DESCRIPTION 🌸

okay so this function sends the virtchnl adj time message to adjust the clock by the indicated delta. that’s the vibe, that’s the job, periodt 💅

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🔥 RETURN 🔥

0 on success, -errno otherwise. so if it’s 0, slay; if it’s negative errno, that’s the error code telling you what went sideways 😭

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🦋 SEE ALSO 🦋

• Kernel file: ./drivers/net/ethernet/intel/idpf/idpf_virtchnl_ptp.c
• idpf_ptp_get_caps(9)
• idpf_ptp_get_dev_clk_time(9)
• idpf_ptp_get_cross_time(9)
• idpf_ptp_set_dev_clk_time(9)
• idpf_ptp_adj_dev_clk_fine(9)
• idpf_ptp_get_vport_tstamps_caps(9)
• idpf_ptp_update_tstamp_tracker(9)
• idpf_ptp_get_tstamp_value(9)
• idpf_ptp_get_tx_tstamp_async_handler(9)
• idpf_ptp_get_tx_tstamp(9)

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that’s the whole page bestie — xoxo, your kernel group chat 💖 (source/version: ./drivers/net/ethernet/intel/idpf; date: October 2026)