> > I want to implement a special ioctl (enable "bit bang" mode) > > for the ftdi_sio usb-serial driver. > > Are you sure there's nothing in the 60+ different tty ioctls in the > kernel that would work for you?
My problem is: What do all these short names mean? Is there somewhere a table describing their function? And how do I know which ioctl could be already in use by a higher layer of the usb system? I was just curious if there's some kind of custom_ioctl_base ;-) > And why do you want to implement such an ioctl, why would the user care about > something like this (meaning, why doesn't the driver "just work" for the user.) Newer versions of the FTDI chipset support a special mode: bit bang. You can read about it here: http://www.ftdichip.com/Documents/AN232-01_BitBang.pdf Many people on the ftdi_sio mailinglist where asking for it, and I also need it for a lot of machines (we'll be using this chip to drive a vfd display for a linux appliance) Also I plan on implementing more features such as eeprom programming of the FTDI chip. These are features you currently only have under windows. I don't want to switch to windows just for programming the eeprom. Cheers, Thomas ------------------------------------------------------- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
