ccwgroup_set_online(9)

💖 ccwgroup_set_online(9) 💖

okay so bestie, welcome to the Kernel API Manual — this one's a little kernel function named ccwgroup_set_online, and honestly? it's a whole vibe. let's get into it 🦋

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✨ NAME ✨

ccwgroup_set_online — enable a ccwgroup device 💅

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🌸 SYNOPSIS 🌸

int ccwgroup_set_online (struct ccwgroup_device *gdev );

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🎀 ARGUMENTS 🎀

• gdev — the target ccwgroup device 👑 like, the actual device you're trying to glow up into the online state.

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🧚 DESCRIPTION 🧚

so this function attempts to put the ccwgroup device into the online state. that's it, that's the whole serve. no cap, it just tries to flip gdev online and hopes for the best 🔥

note the word "attempts" — it's giving "trying its best", not "guaranteed slay". that's why there's a return value, bestie. check it. 🙈

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💀 RETURN 💀

• 0 on success 🌈 (iconic, we love to see it)
• a negative error value on failure 😭 (not iconic, check your errno)

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🫶 SEE ALSO 🫶

• Kernel file ./drivers/s390/cio/ccwgroup.c
• ccwgroup_set_offline(9)
• ccwgroup_create_dev(9)
• ccwgroup_driver_register(9)
• ccwgroup_driver_unregister(9)
• ccwgroup_probe_ccwdev(9)
• ccwgroup_remove_ccwdev(9)

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and that's the whole page, bestie — mwah 💋

this cutie lives in ./drivers/s390/cio, and this particular edition is dated October 2026, filed under the very iconic name ccwgroup_set_online(9). go forth and enable things ✨💜