On Mon, Jan 14, 2019 at 4:13 PM Guan Yung Tseng <guan.yung.tseng@xxxxxx> wrote: > > Modified NI devices class to PCI_CLASS_COMMUNICATION_MULTISERIAL. > The reason of doing this is because all NI multi port serial cards > use PCI_CLASS_COMMUNICATION_OTHER class and thus fail the > serial_pci_is_class_communication test added in the commit 7d8905d06405 > ("serial: 8250_pci: Enable device after we check black list"). Guan, can you provide an output of the lspci -nk -xx -vv -s <BDF> of your device, where <BDF> is a PCI address in a form of bus:device.function? -- With Best Regards, Andy Shevchenko