viortc_init_clock(9)

💅 viortc_init_clock(9) 💅

okay so we're in the Kernel API Manual, and today's main character is viortc_init_clock(9). Bestie, this one is short but it's literally the setup moment for the virtio_rtc clock's local representation. 🎀

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🌸 NAME 🌸

viortc_init_clock — init local representation of virtio_rtc clock

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✨ SYNOPSIS ✨

int viortc_init_clock (struct viortc_dev *viortc , u16 vio_clk_id );

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🎀 ARGUMENTS 🎀

• viortc — device data. It's the device's whole situation, iykyk.
• vio_clk_id — virtio_rtc clock id. The little ID that says which clock we're talking about. 🕰️

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🦋 DESCRIPTION 🦋

Initializes PHC and/or RTC class device to represent virtio_rtc clock. That's the mission, fr fr — it's giving setup era, no cap. ✨

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💅 CONTEXT 💅

Process context. That's it, that's the context. 🫶

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🔥 RETURN 🔥

Zero on success, negative error code otherwise. So 0 is slay, and anything negative is an error code saying not slay. 😭

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🌈 SEE ALSO 🌈

okay bestie, the lore is deep — go read:

• Kernel file: ./drivers/virtio/virtio_rtc_driver.c
• struct viortc_vq(9)
• struct viortc_dev(9)
• struct viortc_msg(9)
• viortc_class_from_dev(9)
• viortc_alarms_supported(9)
• viortc_feed_vq(9)
• viortc_msg_init(9)
• viortc_msg_release(9)
• viortc_do_cb(9)
• viortc_requestq_hdlr(9)
• viortc_cb_requestq(9)
• viortc_alarmq_hdlr(9)
• viortc_cb_alarmq(9)
• viortc_get_resp_errno(9)
• viortc_msg_xfer(9)
• VIORTC_DECLARE_MSG_HDL_ONSTACK(9)
• VIORTC_MSG(9)
• VIORTC_MSG_INIT(9)
• VIORTC_MSG_WRITE(9)
• VIORTC_MSG_READ(9)
• viortc_read(9)
• viortc_read_cross(9)
• viortc_cfg(9)
• viortc_clock_cap(9)
• viortc_cross_cap(9)
• viortc_read_alarm(9)
• viortc_set_alarm(9)
• viortc_set_alarm_enabled(9)
• viortc_init_rtc_class_clock(9)
• viortc_init_ptp_clock(9)
• viortc_clocks_deinit(9)
• viortc_clocks_init(9)
• viortc_populate_vq(9)
• viortc_alloc_vq_bufs(9)
• viortc_init_vqs(9)
• viortc_probe(9)
• viortc_remove(9)

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xoxo, your kernel bestie 💖 — source/version: ./drivers/virtio · date: October 2026 · page: viortc_init_clock(9) bye bestie! 👑