Your Red Hat account gives you access to your profile, preferences, and services, depending on your status.
If you are a new customer, register now for access to product evaluations and purchasing capabilities.
Need access to an account?If your company has an existing Red Hat account, your organization administrator can grant you access.
For your security, if you’re on a public computer and have finished using your Red Hat services, please be sure to log out.
probe::tty.poll — Called when a tty device is being polled
tty.poll
file_namewait_keyHere are the common uses of Markdown.
~~~
Code surrounded in tildes is easier to read
~~~[Red Hat Customer Portal](https://access.redhat.com)
Where did the comment section go?
Red Hat's documentation publication system recently went through an upgrade to enable speedier, more mobile-friendly content. We decided to re-evaluate our commenting platform to ensure that it meets your expectations and serves as an optimal feedback mechanism. During this redesign, we invite your input on providing feedback on Red Hat documentation via the discussion platform.