Hi I'm new to this group and also fairly new to low level programming. I have a problem with programming the serial i/o port. wat i'm doing is trying to communicate with an analog board using a phillips I^2C bus and the serial port. I'm using as iport/AFM adapter between the serial port of the PC and the I^2C bus of the analog board. I was successful is communicating using the open/read/write port commands, but i have issues relating to time. I tried both the non-blocking and the blocking mode and both take time in milliseconds(20-30ms) between successive write and read commands. The processes on the analog board take microseconds and both the iport adapter and the I2C bus are fairly fast. I DONT understand why i'm taking so much time. I'm also trying to command the i/o port using inb() and outb() so as to speed up the communication. I have few questions on that. -After i use ioperm().Do I have to configure the serial port. -and how can i send and receive strings using inb() and outb(). I would really appreciate your patience in attending to my questions. Vikram -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
