Why do we need it? Start Free Trial No credit card required. This setup permits the top half to service a new interrupt while the bottom half is still working.
Linux Device Drivers, Second Edition by Alessandro Rubini, Jonathan Corbet
Writing a BH Bottom Half. The rest of this section lists some of the most interesting bottom halves. What are the bottom halves being used in the present linux kernels? Top Half and Bottom Half. Drivers must always be prepared for this possibility, and must be able to determine how much work there bottom half linux to perform from the information left by the top half.
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This is the most important bottom half for driver writers. In bottom half we do rest of the work. Subscribe to: Start Free Trial No credit card required. Unknown April 27, at 8: