Documentation/serial/sx.txt

2       sx.txt  -- specialix SX/SI multiport serial driver readme.
18       rewrite  from scratch. Just a few lines-of-code have been snatched.
75 In contrast with many other multi port serial cards, some of the data
85 A multi port serial card, would generate a horrendous amount of
97 timer-based polling is better if your card almost always has work to
104 ISA". Otherwise the card can pull on the interrupt line all it wants
123 instance you can put an SX card at 0xc8000-0xd7fff. This is not a
136 PCI cards are always detected. The driver auto-probes for ISA cards at
137 some sensible addresses. Please report if the auto-probe causes trouble
140 I'm afraid I haven't implemented "kernel command line parameters" yet.
142 the compiled-into-the-kernel version of the driver. Use a module
151 	sx_poll: number of jiffies between timer-based polls.
162 	sx_slowpoll: Number of jiffies between timer-based polls.
187 		At "-1" all debugging traces are active. You'll get several
196 baud. However the line drivers usually give up before that.  Also the
207 against each other, be my guest, and report your findings...... :-)
225 # (I recommend that you cut-and-paste this into a file and run that)
229 while [ $t -lt 64 ]
231   echo -n "$t "
242 the line with "while". The devices start at 0, as is customary on
245 If your system doesn't come with these devices pre-installed, bug your
246 linux-vendor about this. They should have these devices
247 "pre-installed" before the new millennium. The "ps" stuff at the end
257 ------------------------------------------------------------------------
261 	- Hangup processing.
262 	  -- Done.
264 	- the write path in generic_serial (lockup / oops).
265 	  -- Done (Ugly: not the way I want it. Copied from serial.c).
267         - write buffer isn't flushed at close.
268 	  -- Done. I still seem to lose a few chars at close.
269 	     Sorry. I think that this is a firmware issue. (-> Specialix)
271 	- drain hardware before  changing termios
272 	- Change debug on the fly.
273 	- ISA free irq -1. (no firmware loaded).
274 	- adding c8000 as a probe address. Added warning.
275 	- Add a RAMtest for the RAM on the card.c
276         - Crash when opening a port "way" of the number of allowed ports.
278 	- Sometimes the use-count strays a bit. After a few hours of
283 	- TAs don't work right if you don't connect all the modem control
284 	  signals. SXDCs do. T225 firmware problem -> Specialix.
289 	- Arbitrary baud rates. Requires firmware update. (-> Specialix)
291 	- Low latency (mostly firmware, -> Specialix)