Hi Jan,
OK.I did as what you say.First open file "hakan" ,than open same file on
second client.But there is no kernel error or in-use error??is this a
bug?or Am I do something wrong??
Jan Harkes wrote:
There is not really a lock file or lock on the device. However our
kernel module only allows a single process to open it. If the device is
considered 'in-use' the kernel returns an EBUSY error.
It is quite useful, this way the kernel knows that any message to or
from userspace always ends up with the same process.
Jan
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