search for: 16550a

...s in the case. I tested 5 cables, but none works. whereas I'm not sure if it is a cable problem. this is what dmesg says when booting (with 2 onboard ports). OS is Centos 5.3: Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A 00:03: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A 00:04: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A Linux helios 2.6.18-128.2.1.el5 #1 SMP Tue Jul 14 06:39:56 EDT 2009 i686 i686 i386 GNU/Linux - the dealer says its not a cable problem and handed me...

...:0a.0 Serial controller: Lava Computer mfg Inc Quattro-PCI A 01:0a.1 Serial controller: Lava Computer mfg Inc Quattro-PCI B On the 32-bit system (2.6.9-89.0.18.EL.plus.c4 [i686]) dmesg says: Serial: 8250/16550 driver $Revision: 1.90 $ 8 ports, IRQ sharing enabled ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A ACPI: PCI Interrupt 0000:01:0a.0[A] -> GSI 16 (level, low) -> IRQ 233 ttyS4 at I/O 0xd080 (irq = 233) is a 16550A ttyS5 at I/O 0xd000 (irq = 233) is a 16550A ACPI: PCI Interrupt 0000:01:0a.1[A] -> GSI 16 (level, low) -> IRQ 233 ttyS6 at I/O...

This is a fairly standard and old machine with 2 COM ports. Recently (last Friday) I decided to update my RELENG_7 system and also to transition from sio to uart. This what I had before the upgrade: kernel: sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 kernel: sio0: type 16550A kernel: sio0: [FILTER] kernel: sio1: <16550A-compatible COM port> port 0x2e8-0x2ef irq 3 on acpi0 kernel: sio1: type 16550A kernel: sio1: [FILTER] This is what I have now: uart0: <16550 or compati...

I have an amd64 7.1 install on a SuperMicro C2SBA+ and I see the following in dmesg.. sio0: configured irq 4 not in bitmap of probed irqs 0 sio0: port may not be enabled sio0: configured irq 4 not in bitmap of probed irqs 0 sio0: port may not be enabled sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 sio0: type 16550A sio0: [FILTER] sio1: configured irq 3 not in bitmap of probed irqs 0 sio1: port may not be enabled sio1: configured irq 3 not in bitmap of probed irqs 0 sio1: port may not be enabled sio1: <16550A-compatible COM...

...y appreciated. >> >> Pete > Wondering if you've tried poking at them with 'setserial'? > Thanks for the suggestion. I looked at them with setserial, but I have no familiarity with the program to know what to change. setserial -ag /dev/ttyS* /dev/ttyS0, Line 0, UART: 16550A, Port: 0x03f8, IRQ: 4 ??? Baud_base: 115200, close_delay: 50, divisor: 0 ??? closing_wait: 3000 ??? Flags: spd_normal skip_test /dev/ttyS1, Line 1, UART: 16550A, Port: 0x8000, IRQ: 17 ??? Baud_base: 115200, close_delay: 50, divisor: 0 ??? closing_wait: none ??? Flags: spd_normal skip_test /...

...ernel: pci1: <NVidia Riva TNT2 graphics accelerator> at 0.0 irq 11 Apr 14 09:30:27 chapel-hill /kernel: sio0: <3COM PCI FaxModem> port 0x1428-0x142f irq 11 at device 14.0 on pci0 Apr 14 09:30:27 chapel-hill /kernel: sio0: moving to sio2 Apr 14 09:30:27 chapel-hill /kernel: sio2: type 16550A Apr 14 09:30:27 chapel-hill /kernel: sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0 Apr 14 09:30:27 chapel-hill /kernel: sio0: type 16550A Apr 14 09:30:27 chapel-hill /kernel: sio1 at port 0x2f8-0x2ff irq 3 on isa0 Apr 14 09:30:27 chapel-hill /kernel: sio1: type 16550A ========== Kernel probe...

On Wed, 2007-12-05 at 14:22 +0000, Xen staging patchbot-unstable wrote: > # HG changeset patch > # User Keir Fraser > # Date 1196864460 0 > # Node ID f0ac46de680cc6fe8c91699fdda153b125ae515c > # Parent bf21e00155b7dd76653c5340099ecedac7a7de08 > [QEMU-DM] Upgrade emulated UART to 16550A. > > This patch adds 16550 emulation to qemu-dm. I still consider it a work > in progress, but from my testing, it consistently performs better than > the old code already, sometimes considerably so (on my laptop, dumping > out data over serial from a HVM DomU -> pty in Dom0 was...

...lt;ACPI PCI bus> on pcib4 pcib5: <ACPI PCI-PCI bridge> at device 0.0 on pci5 pci6: <ACPI PCI bus> on pcib5 puc0: <Titan PCI-800H> port 0x5000-0x501f,0x5020-0x503f mem 0xfdff0000-0xfdff0fff,0xfdfe0000-0xfdfe0fff irq 78 at device 2.0 on pci6 puc0: [FILTER] sio0 on puc0 sio0: type 16550A (multiport master) sio0: [FILTER] sio1 on puc0 sio1: type 16550A (multiport) sio1: [FILTER] sio2 on puc0 sio2: type 16550A (multiport) sio2: [FILTER] sio3 on puc0 sio3: type 16550A (multiport) sio3: [FILTER] puc1: <Titan PCI-800H> port 0x5040-0x505f,0x5060-0x507f mem 0xfdfd0000-0xfdfd0fff,0xf...

...t I'm not sure if it's even working with those 4. >From 'dmesg' I see this: ... Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 19 (level, low) -> IRQ 177 0000:04:00.0: ttyS0 at I/O 0xbf00 (irq = 177) is a 16550A 0000:04:00.0: ttyS1 at I/O 0xbf08 (irq = 177) is a 16550A 0000:04:00.0: ttyS2 at I/O 0xbe00 (irq = 177) is a 16550A 0000:04:00.0: ttyS3 at I/O 0xbe08 (irq = 177) is a 16550A Couldn't register serial port 0000:04:00.0: -28 ... [root at smse2e ~]# ls -la /dev/ttyS* crw-rw---- 1 root uucp 4, 64 D...

...zabackup01 ~]# dmesg |grep tty Bootdata ok (command line is ro root=/dev/System/root rhgb quiet xencons=tty6) Kernel command line: ro root=/dev/System/root rhgb quiet xencons=tty6 WARNING: Failed to register Xen virtual console driver as 'tty1' serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A 00:06: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A ttyS0: 1 input overrun(s) ttyS0: 1 input overrun(s) running screen /dev/ttyS0 doesn't show up anything, and I should at least get the switch's login prompt. -- Kind Regards Rudi Ahlers

...nel /boot/xen.gz dom0_mem=64000 physdev_dom0_hide=''(00:2f.8)'' max_loop=32 module /boot/xen-linux-2.6.11.12-xen0.xen.kernel root=/dev/hda2 ro i used the entries from dmesg: Serial: 8250/16550 driver $Revision: 1.90 $ 8 ports, IRQ sharing disabled ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A my config looks like this: name ="debian-mail" kernel ="/boot/xen-linux-2.6.11.12-xen0.xen.kernel" root ="/dev/sda1" memory =128 disk = [''file:/mnt/vserver/images/mail.img,sda1,w'',''file:/mnt/vserver...

...: <Creative CT5880-E> port 0xec00-0xec3f irq 10 at device 8.0 on pci0 pcm0: <SigmaTel STAC9721/23 AC97 Codec> puc0: <Oxford Semiconductor OX16PCI954 Dual UART> port 0xe400-0xe41f,0xe800-0xe81f mem 0xdfffe000-0xdfffefff,0xdffff000-0xdfffffff irq 10 at device 11.0 on pci0 sio2: type 16550A sio3: type 16550A sio4: type 16550A sio5: type 16550A pci0: <unknown card> (vendor=0x1415, dev=0x9500) at 11.1 irq 10 viapropm0: SMBus I/O base at 0x400 viapropm0: <VIA VT8233 Power Management Unit> port 0x400-0x40f at device 17.0 on pci0 viapropm0: could not allocate bus space device_p...

...es [ 3.590852] ACPI: \_PR_.CP06: Found 4 idle states [ 3.596037] ACPI: \_PR_.CP07: Found 4 idle states [ 3.644065] Freeing initrd memory: 6740K [ 3.742932] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 3.750409] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 3.762111] serial 0000:00:16.3: enabling device (0000 -> 0003) [ 3.771589] 0000:00:16.3: ttyS1 at I/O 0xf0a0 (irq = 17, base_baud = 115200) is a 16550A [ 3.782503] Linux agpgart interface v0.103 [ 3.787805] ACPI: bus type drm_connector registered <--- boot stops here. It should...

...root nut 2391 2006-05-15 20:34 upsd.users jason@ubuntu:~$ sudo cat /etc/nut/ups.conf [...] user = nut [mge] driver = mge-shut port = /dev/ttyS1 desc = "MGE Pulsar Ellipse UPS" jason@ubuntu:~$ dmesg | grep -i ttyS [42949378.240000] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A [42949378.240000] serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A [42949378.250000] 00:09: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A [42949378.250000] 00:0a: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A I have also tried/used "port = /dev/ttyS0" in the ups.conf to make sure it's not...

Keir, is there a particular reason you chose to use slightly different special mode numbers than Linux, ignoring VIDEO_CURRENT_MODE altogether? I think it wouldn''t be bad to be in sync with Linux here, and I independently think that having a way to avoid mode switching altogether is good to have in case of possible problems on exotic hardware. Jan

...art3: [FILTER] the applications does not work. When its the sio driver, it works as expected puc0: <Oxford Semiconductor OX16PCI954 UARTs> port 0xe520-0xe53f,0xe540-0xe55f mem 0xa0005000-0xa0005fff,0xa0006000-0xa0006fff irq 15 at device 17.0 on pci0 puc0: [FILTER] sio1 on puc0 sio1: type 16550A sio1: [FILTER] sio2 on puc0 sio2: type 16550A sio2: [FILTER] sio3 on puc0 sio3: type 16550A sio3: [FILTER] sio4 on puc0 sio4: type 16550A sio4: [FILTER] Unfortunately, we only control the FreeBSD side of things and the other end of the serial connection is a windows app we dont control. Everyth...

I installed CentOS 6 on a Dell Optiplex 790 with a StarTech.com dual serial port card, and the serial ports aren't being recognized. According to dmesg, only the built-in serial port is being recognized: # dmesg | fgrep ttyS serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A 00:08: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A And lspci -v doesn't show that any drivers are loaded for it: # lspci -v [snip] 03:00.0 Serial controller: NetMos Technology PCIe 9922 Multi-I/O Controller (prog-if 02 [16550]) Subsystem: Device a000:1000 Flags: fast devsel, IRQ...

I recently bought a new UPS, and I''m attempting to use nut to monitor it. Following setup instructions everything seemed to go well until it came to testing the connection, which failed. There is just one serial connector on the computer, so I set it to monitor /dev/ttyS0. Either that is wrong, or communication is failing. I''ve been told to try minicom to monitor it,

...they use ttydN. What shall I do? You are mentioning to Installation procedure to use cuaaN... Another thing: I really need your help because also the /usr/local/ups/bin/upsdrvctl start does not exist. With dmesg command I can see fd0: <1440-KB 3.5" drive> on fdc0 drive 0 sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 sio0: type 16550A sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0 sio1: type 16550A ppc0: <Standard parallel printer port> port 0x378-0x37f irq 7 on acpi0 ppc0: Generic chipset (EPP/NIBBLE) in COMPATI...

...iconductor Ltd OX16PCI954 (Quad 16950 UART) function 0 (Uart) 0a:0c.1 Bridge: Oxford Semiconductor Ltd OX16PCI954 (Quad 16950 UART) function 1 (8bit bus) However, only the 4 serial ports on one of the two cards are configured correctly: # dmesg | fgrep ttyS ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A ttyS4 at I/O 0x5020 (irq = 177) is a 16C950/954 ttyS5 at I/O 0x5028 (irq = 177) is a 16C950/954 ttyS6 at I/O 0x5030 (irq = 177) is a 16C950/954 ttyS7 at I/O 0x5038 (irq = 177) is a 16C950/954 ttyS1 at I/O 0x5060 (irq = 193) is a 16450 ttyS2 at I/O 0x5068 (irq = 193) is a 16450 ttyS3 at I/O 0x5070 (...