1The Aurora Linux 2.4.* software package for the Siemens/Infineon 8253X
2based PCI adapter card product line (2520, 4520, 4020, 8520, WMS and LMS
3communications controllers) provides the following benefits to the user.
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71.        A Linux Asynchronous TTY driver that supports serial
8connections to asynchronous TTYs with the standard Linux/Unix terminal
9capabilities as well as custom baud rates.  The asynchronous TTY driver
10can also support connections to computers that support standard
11asynchronous terminal emulation programs, such as cu, tip, kermit or
12hyperterm.  The asynchronous TTY driver can also support file transfer
13via standard asynchronous file transfer programs like kermit.  In
14addition, the asynchronous TTY driver can be used by asynchronous SLIP
15or PPP to provide network connectivity.
16
172.        A Linux Synchronous TTY driver that supports all of the above
18for synchronous TTY connections.  Because one cannot generally purchase
19synchronous TTYs, this functionality is most useful with software
20terminal emulators and with synchronous PPP implementations that assume
21an underlying synchronous terminal driver.
22
233.        A Linux Synchronous Network driver that provides a synchronous
24serial ethernet interface.  This interface provides a simple
25straightforward method of synchronous wide-area interconnection that
26works via the standard Linux Ethernet network and bridging interfaces. 
27Some routers and bridges support this interface.
28
294.        A Linux Synchronous Character driver that provides a standard
30read/write interface to the network driver functionality (i.e., packet
31read and packet write capability) and that can emulate the Solaris
32putmsg/getmsg interface.  This driver is useful for users that wish to
33implement their own protocol software within user applications.
34
355.        The Aurora Linux software provides the capability of dial-up
36connection set-up for any of the previous drivers.  This dial-up
37capability follows the /dev/cua convention of Linux 2.2* and Linux 2.4.*
38kernels.
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406.        Source is provided so that users may make custom modifications
41to drivers.  Adding BISYNC or cHDLC support would be fairly
42straightforward and may become available in later releases.  This source
43could provide a starting point for implementing drivers for other
44operating systems.  The source is partitioned by functionality and comes
45with functional and design specifications as well as other documentation
46useful to users and implementers.
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