PCAN-PC/104-Plus Quad MSI support

Four-Channel CAN Interface for PC/104-Plus
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sumantra94
Posts: 2
Joined: Mon 29. Jun 2020, 11:40

PCAN-PC/104-Plus Quad MSI support

Post by sumantra94 » Mon 29. Jun 2020, 11:44

Hi,
I am trying to use the PCAN-PC/104-Plus Quad (https://www.peak-system.com/PCAN-PC-104 ... .html?&L=1) with the Linux Chardev driver. Does this card support MSI interrupts?

When I run the driver with the option usemsi=1 I get a kernel error msg (pci_find_capabillity failed). So does that mean that MSI interrupts are not supported on this device?

Thanks
Sumantra

M.Heidemann
Sales & Support
Sales & Support
Posts: 673
Joined: Fri 20. Sep 2019, 13:31

Re: PCAN-PC/104-Plus Quad MSI support

Post by M.Heidemann » Mon 29. Jun 2020, 12:21

Hello,

The PC/104 device does not support MSI interrrupts.

This is only available on PCI/PCIe devices,
this is hinted at in the manual:
MSIPCIPCIE.PNG
MSIPCIPCIE.PNG (7.85 KiB) Viewed 1707 times

Best Regards

Marvin

sumantra94
Posts: 2
Joined: Mon 29. Jun 2020, 11:40

Re: PCAN-PC/104-Plus Quad MSI support

Post by sumantra94 » Mon 29. Jun 2020, 13:05

Oh yes, should have been obvious. Thank you.

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