> From: Greg KH [mailto:gregkh@xxxxxxxxxxxxxxxxxxx] > Sent: Thursday, July 25, 2019 1:19 PM > To: Mike Bogdanov; Nicos Gollan > Cc: linux-serial@xxxxxxxxxxxxxxx > Subject: Re: st-lab i-472 serial card problem > > On Tue, Jul 23, 2019 at 04:27:47PM +0300, Mike Bogdanov wrote: > > Hi, > > I have a problem with 6 serial port card st-lab i-472 > > (http://www.stlab.ru/catalog/kontrolleri/controller-st-lab-pci-e-x1-i-472-i- > > 470-6-ext-6xcom9m-ret.html). > > > > i have instaled debian 8. > > >root@c000050:~# uname -a > > >Linux c000050 4.9.0-0.bpo.9-686-pae #1 SMP Debian 4.9.168- > 1+deb9u3~deb8u1 > > (2019-06-17) i686 GNU/Linux > > > > > > In dmesg i found the follow message with yuor email: > > [ 2.180347] Serial: 8250/16550 driver, 10 ports, IRQ sharing enabled > > [ 2.207661] 00:01: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a > > 16550A > > [ 2.237213] 0000:01:00.0: ttyS4 at I/O 0xe050 (irq = 16, base_baud = 115200) > > is a ST16650V2 > > [ 2.266932] 0000:01:00.0: ttyS5 at I/O 0xe040 (irq = 16, base_baud = 115200) > > is a ST16650V2 > > [ 2.296576] 0000:01:00.1: ttyS6 at I/O 0xe030 (irq = 17, base_baud = 115200) > > is a ST16650V2 > > [ 2.326296] 0000:01:00.1: ttyS7 at I/O 0xe020 (irq = 17, base_baud = 115200) > > is a ST16650V2 > > [ 2.334970] serial 0000:01:00.2: NetMos/Mostech serial driver ignoring port > > on ambiguous config. > > [ 2.343895] serial 0000:01:00.2: 0000:01:00.2: unknown NetMos/Mostech > device > > Please send the output of lspci -vv, this > > message (0x9710,0x9900,0xa000,0x1000), the > > manufacturer and name of serial board or > > modem board to <linux-serial@xxxxxxxxxxxxxxx>. > > [ 2.371816] serial 0000:01:00.3: NetMos/Mostech serial driver ignoring port > > on ambiguous config. > > [ 2.380734] serial 0000:01:00.3: 0000:01:00.3: unknown NetMos/Mostech > device > > Please send the output of lspci -vv, this > > message (0x9710,0x9900,0xa000,0x1000), the > > manufacturer and name of serial board or > > modem board to <linux-serial@xxxxxxxxxxxxxxx>. > > > > > > Odd, this "should" work. Nicos added support for this back in the 3.1 > kernel, but odds are something has changed in the hardware since then. > Does the device work properly even with these messages? Before linux kernel 4.9 I work with 3.16 . Yes port was workable with similar message but without suggestion to write message to someone. > Nicos, any idea? > > lspci-v output below for reference. > > thanks, > > greg k-h > > ---------------------------------------------------------- > > > > Can you give advice how can i start this board? > > I'm not shure I'm right.... especially if consider a comment in code I found near my error message: //serial ports, or 0x1000 indicates *something*. This is not immediately obvious, since the 2s1p+4s ... But I decide to make temporary solution for me witch work now: ---------------------------------------------------------- *** 8250_pci.old.c --- 8250_pci.c *************** *** 810,819 **** --- 810,821 ---- * advertising the same function 3 as the 4s+2s1p config. */ sub_serports = dev->subsystem_device & 0xf; if (sub_serports > 0) return sub_serports; + if (dev->subsystem_vendor == 0xa000 && dev->subsystem_device == 0x1000) + return 1; dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on ambiguous config.\n"); return 0; } ---------------------------------------------------------- Best Regards, Bogdanov Mike
