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On Wed, 22 Apr 1998, Ho Chin Keong wrote: > Just trying my luck here to see if anyone has any > experiences in setting up the infra-red device in thinkpad > with linux. I have got the source code from > > http://www.cs.uit.no/~dagb/irda/irda.html and have no success so far. I am > using Thinkpad 755CX and my kernel version is 2.0.30. I'm fairly certain that IRDA is just a error detection/ correction protocol. You don't need it if the software you're using already has error detection/correction (e.g. Laplink, Zmodem if you're transferring files, or TCP/IP if you're running SLIP over your IR :-). Linux will just treat the IR connection as a standard null-modem connection, no special drivers needed. Most IRDA-compliant devices seem to respond to raw serial input just fine. I've printed raw text on my HP LJ 6MP via the IR port without problems before. Obviously for something large like mutli-megabyte postsript files, the error correction is useful. I don't know what the error rate is on these things so I can't say *how* useful though. So decide if you really need IRDA in the first place. -- John H. Kim kim@mak.com