Dear SCO Customer, Support Level Supplement (SLS) ptf7453a, the UnixWare 7.1.0 asyc and iasy Driver Supplement, addresses the following problems: 1. Serial port input flow control does not work. 2. Serial port output throughput is limited to approximately 40Kbps. Contents -------- /etc/conf/pack.d/asyc/Driver_atup.o /etc/conf/pack.d/asyc/Driver_mp.o /etc/conf/pack.d/asyc/space.c /etc/conf/pack.d/iasy/Driver_atup.o /etc/conf/pack.d/iasy/Driver_mp.o Software Notes and Recommendations ---------------------------------- ptf7453a should only be installed on: UnixWare 7 Release 7.1.0 SLS ptf7453a supersedes all versions of SLS ptf7613; however, it is not necessary to remove SLS ptf7613 prior to installing ptf7453a. Installation Instructions ------------------------- 1. Download the ptf7453a.Z file to the /tmp directory on your machine. 2. As root, uncompress the file and add the package to your system using these commands: $ su Password: # uncompress /tmp/ptf7453a.Z # pkgadd -d /tmp/ptf7453a # rm /tmp/ptf7453a Alternatively, this SLS package may be installed in quiet mode, that is, without displaying the release notes and asking for installation confirmation. To do this, use these commands: $ su Password: # uncompress /tmp/ptf7453a.Z # pkgadd -qd /tmp/ptf7453a all # rm /tmp/ptf7453a 3. Reboot the system after installing this package. The release notes displayed prior to installation can be found in: /var/sadm/pkg/ptf7453/install/ptf7453.txt Removal Instructions -------------------- 1. As root, remove the package using these commands: $ su Password: # pkgrm ptf7453 2. Reboot the system after removing this package. If you have questions regarding this SLS, or the product on which it is installed, please contact your software supplier.