The Oracle Solaris OS provides driver developers with a comprehensive set of interfaces for accessing device memory. These interfaces are designed to shield the driver from platform-specific dependencies by handling mismatches between processor and device endianness as well as enforcing any data order dependencies the device might have. By using these interfaces, you can develop a single-source driver that runs on both the SPARC and x86 processor architectures as well as the various platforms from each respective processor family.
This chapter provides information on the following subjects: