Copyright (C) 1999, 2000 Bruce TenisonPortions Copyright (C) 1999, 2000 David NelsonThanks to David Nelson for guidance and the usage of the scanner.txtand scanner.c files to model our driver and this informative file.Mar. 2, 2000CHANGES- Initial RevisionOVERVIEWThis README will address issues regarding how to configure the kernelto access a RIO 500 mp3 player.  Before I explain how to use this to access the Rio500 please be warned:W A R N I N G:--------------Please note that this software is still under development.  The authorsare in no way responsible for any damage that may occur, no matter howinconsequential.It seems that the Rio has a problem when sending .mp3 with low batteries.I suggest when the batteries are low and want to transfer stuff that youreplace it with a fresh one. In my case, what happened is I lost two 16kbblocks (they are no longer usable to store information to it). But I don'tknow if thats normal or not. It could simply be a problem with the flash memory.In an extreme case, I left my Rio playing overnight and the batteries wore down to nothing and appear to have corrupted the flash memory. My RIO needed to be replaced as a result.  Diamond tech support is aware of the problem.  Do NOT allow your batteries to wear down to nothing before changing them.  It appears RIO 500 firmware does not handle low battery power well at all. On systems with OHCI controllers, the kernel OHCI code appears to have power on problems with some chipsets.  If you are having problems connecting to your RIO 500, try turning it on first and then plugging it into the USB cable.  Contact information:--------------------   The main page for the project is hosted at sourceforge.net in the following   address: http://rio500.sourceforge.net You can also go to the sourceforge   project page at: http://sourceforge.net/project/?group_id=1944 There is    also a mailing list: rio500-users@lists.sourceforge.netAuthors:-------Most of the code was written by Cesar Miquel <miquel@df.uba.ar>. Keith Clayton <kclayton@jps.net> is incharge of the PPC port and making surethings work there. Bruce Tenison <btenison@dibbs.net> is adding supportfor .fon files and also does testing. The program will mostly sure bere-written and Pete Ikusz along with the rest will re-design it. I wouldalso like to thank Tri Nguyen <tmn_3022000@hotmail.com> who provided use with some important information regarding the communication with the Rio.ADDITIONAL INFORMATION and Userspace toolshttp://rio500.sourceforge.net/REQUIREMENTSA host with a USB port.  Ideally, either a UHCI (Intel) or OHCI(Compaq and others) hardware port should work.A Linux development kernel (2.3.x) with USB support enabled or abackported version to linux-2.2.x.  See http://www.linux-usb.org formore information on accomplishing this.A Linux kernel with RIO 500 support enabled.'lspci' which is only needed to determine the type of USB hardwareavailable in your machine.CONFIGURATIONUsing `lspci -v`, determine the type of USB hardware available.  If you see something like:    USB Controller: ......    Flags: .....    I/O ports at ....  Then you have a UHCI based controller.  If you see something like:     USB Controller: .....     Flags: ....     Memory at .....  Then you have a OHCI based controller.Using `make menuconfig` or your preferred method for configuring thekernel, select 'Support for USB', 'OHCI/UHCI' depending on yourhardware (determined from the steps above), 'USB Diamond Rio500 support', and'Preliminary USB device filesystem'.  Compile and install the modules(you may need to execute `depmod -a` to update the moduledependencies).Add a device for the USB rio500:  `mknod /dev/usb/rio500 c 180 64`Set appropriate permissions for /dev/usb/rio500 (don't forget aboutgroup and world permissions).  Both read and write permissions arerequired for proper operation.Load the appropriate modules (if compiled as modules):  OHCI:    modprobe usbcore    modprobe usb-ohci    modprobe rio500  UHCI:    modprobe usbcore    modprobe usb-uhci  (or uhci)    modprobe rio500That's it.  The Rio500 Utils at: http://rio500.sourceforge.net shouldbe able to access the rio500.BUGSIf you encounter any problems feel free to drop me an email.Bruce Tenisonbtenison@dibbs.net