Inviato da iPhone > Il giorno 28 nov 2022, alle ore 17:00, Bo Berglund via lazarus > <lazarus@lists.lazarus-ide.org> ha scritto: > > On Mon, 28 Nov 2022 14:48:20 +0100, Giuliano Colla via lazarus > <lazarus@lists.lazarus-ide.org> wrote: > >> /dev/tty* is pretty much useless. It's there for historical reasons. >> /dev/ttyS* is the one for actual serial adapters, and, unless you >> override with a command line parameter on boot, it is limited to 0..3 in >> modern kernels. >> > Here is what I get on Ubuntu 20.04.5 LTS: > > $ ll /dev/ttyS* > crw-rw---- 1 root dialout 4, 64 2022-11-26 08:47 /dev/ttyS0 > crw-rw---- 1 root dialout 4, 65 2022-11-26 08:47 /dev/ttyS1 > crw-rw---- 1 root dialout 4, 74 2022-11-26 08:47 /dev/ttyS10 > crw-rw---- 1 root dialout 4, 75 2022-11-26 08:47 /dev/ttyS11 > crw-rw---- 1 root dialout 4, 76 2022-11-26 08:47 /dev/ttyS12 > crw-rw---- 1 root dialout 4, 77 2022-11-26 08:47 /dev/ttyS13 > crw-rw---- 1 root dialout 4, 78 2022-11-26 08:47 /dev/ttyS14 > crw-rw---- 1 root dialout 4, 79 2022-11-26 08:47 /dev/ttyS15 > crw-rw---- 1 root dialout 4, 80 2022-11-26 08:47 /dev/ttyS16 > crw-rw---- 1 root dialout 4, 81 2022-11-26 08:47 /dev/ttyS17 > crw-rw---- 1 root dialout 4, 82 2022-11-26 08:47 /dev/ttyS18 > crw-rw---- 1 root dialout 4, 83 2022-11-26 08:47 /dev/ttyS19 > crw-rw---- 1 root dialout 4, 66 2022-11-26 08:47 /dev/ttyS2 > crw-rw---- 1 root dialout 4, 84 2022-11-26 08:47 /dev/ttyS20 > crw-rw---- 1 root dialout 4, 85 2022-11-26 08:47 /dev/ttyS21 > crw-rw---- 1 root dialout 4, 86 2022-11-26 08:47 /dev/ttyS22 > crw-rw---- 1 root dialout 4, 87 2022-11-26 08:47 /dev/ttyS23 > crw-rw---- 1 root dialout 4, 88 2022-11-26 08:47 /dev/ttyS24 > crw-rw---- 1 root dialout 4, 89 2022-11-26 08:47 /dev/ttyS25 > crw-rw---- 1 root dialout 4, 90 2022-11-26 08:47 /dev/ttyS26 > crw-rw---- 1 root dialout 4, 91 2022-11-26 08:47 /dev/ttyS27 > crw-rw---- 1 root dialout 4, 92 2022-11-26 08:47 /dev/ttyS28 > crw-rw---- 1 root dialout 4, 93 2022-11-26 08:47 /dev/ttyS29 > crw-rw---- 1 root dialout 4, 67 2022-11-26 08:47 /dev/ttyS3 > crw-rw---- 1 root dialout 4, 94 2022-11-26 08:47 /dev/ttyS30 > crw-rw---- 1 root dialout 4, 95 2022-11-26 08:47 /dev/ttyS31 > crw-rw---- 1 root dialout 4, 68 2022-11-26 08:47 /dev/ttyS4 > crw-rw---- 1 root dialout 4, 69 2022-11-26 08:47 /dev/ttyS5 > crw-rw---- 1 root dialout 4, 70 2022-11-26 08:47 /dev/ttyS6 > crw-rw---- 1 root dialout 4, 71 2022-11-26 08:47 /dev/ttyS7 > crw-rw---- 1 root dialout 4, 72 2022-11-26 08:47 /dev/ttyS8 > crw-rw---- 1 root dialout 4, 73 2022-11-26 08:47 /dev/ttyS9 > > 32 in all... > > -- > Bo Berglund > Developer in Sweden > > -- > _______________________________________________ > lazarus mailing list > lazarus@lists.lazarus-ide.org > https://lists.lazarus-ide.org/listinfo/lazarus
Yes they’re there but they’re not enabled. If you search for ttyS* in the boot log you’ll see how many are probed for. Typically from ttyS0 to ttyS3. Maybe less, it depends on which ones are enabled in BIOS. I know because I had in a project an extra PCI board with four more ports, and I had to modify the boot parameters to have them properly initialized. Otherways they were completely non existing. Just a dummy entry in the /dev folder. -- _______________________________________________ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
