Samuel Thibault wrote: > Da Zheng, le Tue 04 Aug 2009 16:15:10 +0800, a écrit : >> The driver reads the keyboard status from the port 0x64, and it seems OK. It >> doesn't work when the driver tries to write the command to the port 0x64. >> The whole process dies. (the port 0x64 is used for both read the status and >> writing the command.) >> I have used ioperm to acquire the access to the port 0x64 before accessing >> the port (K_STATUS is 0x64). >> if (ioperm (K_STATUS, 1, 1) < 0) >> return FALSE; >> I use the root user to run the keyboard driver. I don't know what the >> possible reason is:-( > > I don't either, as that's roughly what the console driver does for e.g. > the speaker, and it works for it. Just to make sure: you are using > outb(value, 0x64) ? (not something else than outb, not another argument > order). You are right. The code I copied from gnumach used outb(port, value). After I changed the argument order, it works well.
Zheng Da
