Sealevel Systems 7202 PCI Serial Card

Sealevel Systems 7202 PCI Serial Card

[Jonathan Chapman]

Below is the information for a PCI dual-port serial card I use:

Manufacturer: Sealevel Systems INC.
Name/Model: 7202 Dual Port RS-232 Interface

Output of `lspci -vv`:

00:11.0 Serial controller: Sealevel Systems Inc Dual Port RS-232 Interface (rev 01) (prog-if 02 [16550])
        Subsystem: Sealevel Systems Inc Dual Port RS-232 Interface
        Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Interrupt: pin A routed to IRQ 12
        Region 0: Memory at e9100000 (32-bit, non-prefetchable) [size=128]
        Region 1: I/O ports at d800 [size=128]
        Region 2: I/O ports at dc00 [size=8]
        Region 3: I/O ports at e000 [size=8]
        Kernel driver in use: serial

Lines from `dmesg`:

[    0.981647] serial 0000:00:11.0: found PCI INT A -> IRQ 12
[    0.982022] serial 0000:00:11.0: 0000:00:11.0: Redundant entry in serial pci_table.
               Please send the output of lspci -vv, this
               message (0x135e,0x7202,0x135e,0x7202), the
               manufacturer and name of serial board or
               modem board to <linux-serial@vger.kernel.org>.

Thanks,

Jonathan Chapman
Glitch Works, LLC
http://www.glitchwrks.com/

Re: Sealevel Systems 7202 PCI Serial Card

[Greg KH]

On Fri, Feb 26, 2021 at 04:09:05PM -0500, Jonathan Chapman wrote:
> Below is the information for a PCI dual-port serial card I use:
> 
> Manufacturer: Sealevel Systems INC.
> Name/Model: 7202 Dual Port RS-232 Interface
> 
> Output of `lspci -vv`:
> 
> 00:11.0 Serial controller: Sealevel Systems Inc Dual Port RS-232 Interface (rev 01) (prog-if 02 [16550])
>         Subsystem: Sealevel Systems Inc Dual Port RS-232 Interface
>         Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
>         Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>         Interrupt: pin A routed to IRQ 12
>         Region 0: Memory at e9100000 (32-bit, non-prefetchable) [size=128]
>         Region 1: I/O ports at d800 [size=128]
>         Region 2: I/O ports at dc00 [size=8]
>         Region 3: I/O ports at e000 [size=8]
>         Kernel driver in use: serial
> 
> Lines from `dmesg`:
> 
> [    0.981647] serial 0000:00:11.0: found PCI INT A -> IRQ 12
> [    0.982022] serial 0000:00:11.0: 0000:00:11.0: Redundant entry in serial pci_table.
>                Please send the output of lspci -vv, this
>                message (0x135e,0x7202,0x135e,0x7202), the
>                manufacturer and name of serial board or
>                modem board to <linux-serial@vger.kernel.org>.
> 

Wow, that's odd.  This device id has been in the kernel since before
2005 and no one has reported it with this issue.  Maybe no one reads the
kernel logs?

Anyway, thanks for the report, as this is working properly I think we
should just leave it alone given the age of this hardware, we don't want
to accidentally break anything :)

greg k-h