viortc_init_rtc_class_clock(9)

💅 viortc_init_rtc_class_clock(9)

okay so bestie, buckle up — this one's from the Kernel API Manual, section 9, and it's all about getting your RTC class device born and registered. it's giving "birth announcement but make it kernel" 🎀

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✨ NAME ✨

viortc_init_rtc_class_clock — literally init and register a RTC class device. that's the whole vibe. no cap. 🕰️

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🌸 SYNOPSIS 🌸

int viortc_init_rtc_class_clock (struct viortc_dev *viortc , u16
vio_clk_id , u8 clock_type , u8 flags );

like, it returns an int, and it takes four things. we love a simple signature. 🫶

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🦋 ARGUMENTS 🦋

• viortc — the device data. it's the main character here, honestly. 👑
• vio_clk_id — the virtio_rtc clock id. it's a u16, iykyk. 🔥
• clock_type — the virtio_rtc clock type. a u8 this time. ⭐
• flags — these are the struct virtio_rtc_resp_clock_cap.flags. yes, those flags. 💅

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💖 DESCRIPTION 💖

the clock must be a UTC-like clock. that's it. that's the requirement. don't come in here with your non-UTC-like nonsense, bestie, it's not the vibe. 😭

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🌈 CONTEXT 🌈

Process context. periodt. 🧚

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🔥 RETURN 🔥

• Positive → if it got registered. slay, it worked. ✨
• Zero → if it's not supported by configuration. not a flop, just not the moment. 🙈
• Negative → an error code otherwise. it's giving 💀, check your stuff.

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👑 SEE ALSO 👑

okay this list is long, but every single one of these is iconic in its own right, so we're listing them all, fr fr:

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_ptp_clock(9), viortc_init_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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and that's the whole page, bestie 🍓 k bye, this came from ./drivers/virtio, dated October 2026, and it's filed under viortc_init_rtc_class_clock(9) 💜✨