Hi to All,

I have an 8 ports RS232 on RHEL 5.4.

In order to use it, I need to apply a patch; the suggested step are:

1. Copy the patch file:
cp linux_2.6_8250_pci_patch /usr/src/{redhat,OpenLinux,turbo,packages,rpm ..}/drivers/serial

2. Cd to the RPM path:
cd /usr/src/{redhat,OpenLinux,turbo,packages,rpm ..}/drivers/serial

3. Update the driver code:
patch -b <linux_2.6_8250_pci_patch
(then the file in the directory will be updated, and also the original file will be copied as 8250_pci.c.orig)
At last:

4. And then build the Kernel.
How can perform the step 4). Can anyone help me ?

Best Regards.

Gaetano