Messages in this thread | ![/](/images/icornerl.gif) | | Date | Wed, 13 Nov 1996 22:37:08 +0000 (GMT) | From | Peter Denison <> | Subject | 2.1.8 mis-identifies serial port type |
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On Wed, 13 Nov 1996, Theodore Y. Ts'o wrote:
> What UART do you have in your system? What UART was detected in the > bootup messages? What application were you using, and how did you
Following up to other people's messages about serial problems, I thought I'd just point out that as of 2.1.8 (first one I've tried since 2.0.25), my fourth serial port gets misidentified.
Before: Linux version 2.0.25 (root@pnd-pc) (gcc version 2.7.2) #8 Sat Nov 9 22:38:05 GMT 1996 Serial driver version 4.13 with no serial options enabled tty00 at 0x03f8 (irq = 4) is a 16550A tty01 at 0x02f8 (irq = 3) is a 16550A tty02 at 0x03e8 (irq = 4) is a 16450 tty03 at 0x02e8 (irq = 3) is a 16550A
Now: Linux version 2.1.8 (root@pnd-pc) (gcc version 2.7.2) #12 Mon Nov 11 19:14:23 GMT 1996 POSIX conformance testing by UNIFIX Serial driver version 4.20 with no serial options enabled tty00 at 0x03f8 (irq = 4) is a 16550A tty01 at 0x02f8 (irq = 3) is a 16550A tty02 at 0x03e8 (irq = 4) is a 16450 tty03 at 0x02e8 (irq = 3) is a TI16750
It most definitely is NOT a TI16750 - it is a 16550. (Just a moment while I open up my case and have a look) It is a National Semiconductor NS16550AFN. (Actually the markings are the two little twiddles, a batch number, PC16550CN, NS16550AFN)
If you need any more information, let me know... Cheers, Peter
-- Peter Denison <peterd@pnd-pc.demon.co.uk> Currently (still) working on a driver for Promise cards under Linux.
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