On Tuesday 06 July 2004 05:05 pm, Mikkel L. Ellertson wrote: > Dennis Myers wrote: > > On Tuesday 06 July 2004 08:31 am, nut megger wrote: > >>Story: continued three month long serial device saga. > >> > >>Problem: cannot use external modem on serial port on > >>ThinkPad X21 Ultrabay > >> > >>Latest attempts (using Fedora Core 2, Mandrake 10.0, > >>Mandrake 9.1, SuSe 9.1): > >> > >>1. BIOS: serial port enabled > >> > >>dmesg | grep tty recognizes ttyS0 at I/O 0x3F8 (IRQ=4) > >>is a 16850A > >> > >>minicom cannot see modem on ttyS0 (no error message, > >>no nothing, echo on) > >> > >>2. BIOS: serial port moved to 2E8 IRQ3 > >> > >>dmesg | grep tty recognizes ttyS3 at I/O 0x2E8 (IRQ=3) > >>is a 16850A > >> > >>minicom cannot see modem on ttyS3 (no error message, > >>no nothing, echo on) > >> > >>Conclusion: still cannot use Linux to access external > >>modem on serial port of ThinkPad X21 UltraBay > >> > >>Aside: Iâm getting real good at loading different > >>Linux distributions from scratch (fedora core 2 is the > >>easiest and quickest) > >> > >> > >> > >>__________________________________ > >>Do you Yahoo!? > >>New and Improved Yahoo! Mail - Send 10MB messages! > >>http://promotions.yahoo.com/new_mail > > > > If I recall correctly IRQ 3 should be ttyS2. ttyS0 is IRQ 1, ttyS1 is > > IRQ 2 etc. HTH > > No, ttyS0 is normaly IRQ4, ttyS1 is IRQ 3. ttyS2 and ttyS3 are up in > the air, depending on the hardware. ttyS2 is sometimes 3, and ttyS3 is > sometime 4. On more flexable hardware, they may be 5 or 7. Realy nice > pardware gives you even more choice... > > Mikkel Ok, been a long time since I had to mess with the tty's, now that I think about it it was the com ports I was meaning to address, com1 etc. are ttys0 etc. But that was so long ago in linux years that it to could have changed? -- Dennis M. Linux user #180842
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