__disable_cmf(9)

🎀 NAME 🎀

okay so welcome to __disable_cmf(9), straight outta the Kernel API Manual 💖. This one is literally here to switch off the channel measurement for a specific device. periodt. ✨

🌸 SYNOPSIS 🌸

int __disable_cmf (struct ccw_device *cdev );

🦋 ARGUMENTS 🦋

• cdev — the ccw device to be disabled. that's the specific device getting switched off, bestie 🫶

💅 RETURN 💅

• 0 for success, or a negative error value. no cap. 😭

🔥 CONTEXT 🔥

non-atomic, and device_lock is held. iykyk — that lock detail is important, don't sleep on it 💀

👑 SEE ALSO 👑

• Kernel file ./drivers/s390/cio/cmf.c
• enum cmb_format(9)
• struct cmb_operations(9)
• struct cmb_area(9)
• struct cmb(9)
• struct cmbe(9)
• enable_cmf(9)
• disable_cmf(9)
• cmf_read(9)
• cmf_readall(9)
• cmf_reactivate(9)

mwah 💋 — this cutie came from the Kernel API Manual, dated October 2026, with source ./drivers/s390/cio. bye bestie 💜