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It allows to reset prevent_medium_removal flag and "eject" the image. This can be useful to free the drive from a hunging host or if the host continues to use the drive even after unmounting (Linux does this). It's also a bit like using an unfolded paperclip on an optical drive. Previously, the undocumented method of sending SIGUSR1 to a special "file-storage" kernel thread could be used for these purposes, but when using multiple storages there was no way to distinguish one from the other, so we had to send a signal to everyone. Reviewed-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Maxim Devaev <mdevaev@gmail.com> Link: https://lore.kernel.org/r/20220711102956.19642-1-mdevaev@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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acm.rst | ||
authorization.rst | ||
chipidea.rst | ||
CREDITS | ||
dwc3.rst | ||
ehci.rst | ||
functionfs.rst | ||
gadget_configfs.rst | ||
gadget_hid.rst | ||
gadget_multi.rst | ||
gadget_printer.rst | ||
gadget_serial.rst | ||
gadget-testing.rst | ||
index.rst | ||
iuu_phoenix.rst | ||
linux-cdc-acm.inf | ||
linux.inf | ||
mass-storage.rst | ||
misc_usbsevseg.rst | ||
mtouchusb.rst | ||
ohci.rst | ||
raw-gadget.rst | ||
text_files.rst | ||
usb-help.rst | ||
usb-serial.rst | ||
usbdevfs-drop-permissions.c | ||
usbip_protocol.rst | ||
usbmon.rst |