Messages in this thread | | | Subject | uart_port structure in serial8250_port[i] doesn't have the port_type values | From | "V. Ananda Krishnan" <> | Date | Mon, 15 Aug 2005 09:10:56 -0500 |
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Hi,
The problem described here is related to the 8250_pci driver in 2.6.12.3/2.6.12.4 kernels. When 8250_pci device driver detects a serial port pci device and sets up the default setup (8250_pci.c), it tries to find a match or unused port (serial8250_find_match_or_unused proc in in 8250.c). This leads to the uart_match_port with one of the parameters as serial8250_ports[i].port. During debugging, I noticed that the none of elements of the serial8250_ports[i].port.type was having any port value. So the serial8250_register_port fails and the device driver module fails to load. In this scenario, the last resort to find any entry which doesn't have a real port associated with it also fails, because of the null value in the serial8250_ports[i].port.type. I would like to know when the port.type values in uart_8250_port strucutre (in serial8250_ports[i]) is populated? Is there anything missing in the serial8250_find_match_or_unused codes? Any help to degug this problem is appreciated. Thanks.
V.Ananda Krishnan
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