linux/Documentation/usb/rio.txt
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   1Copyright (C) 1999, 2000 Bruce Tenison
   2Portions Copyright (C) 1999, 2000 David Nelson
   3Thanks to David Nelson for guidance and the usage of the scanner.txt
   4and scanner.c files to model our driver and this informative file.
   5
   6Mar. 2, 2000
   7
   8CHANGES
   9
  10- Initial Revision
  11
  12
  13OVERVIEW
  14
  15This README will address issues regarding how to configure the kernel
  16to access a RIO 500 mp3 player.  
  17Before I explain how to use this to access the Rio500 please be warned:
  18
  19W A R N I N G:
  20--------------
  21
  22Please note that this software is still under development.  The authors
  23are in no way responsible for any damage that may occur, no matter how
  24inconsequential.
  25
  26It seems that the Rio has a problem when sending .mp3 with low batteries.
  27I suggest when the batteries are low and you want to transfer stuff that you
  28replace it with a fresh one. In my case, what happened is I lost two 16kb
  29blocks (they are no longer usable to store information to it). But I don't
  30know if that's normal or not; it could simply be a problem with the flash 
  31memory.
  32
  33In an extreme case, I left my Rio playing overnight and the batteries wore 
  34down to nothing and appear to have corrupted the flash memory. My RIO 
  35needed to be replaced as a result.  Diamond tech support is aware of the 
  36problem.  Do NOT allow your batteries to wear down to nothing before 
  37changing them.  It appears RIO 500 firmware does not handle low battery 
  38power well at all. 
  39
  40On systems with OHCI controllers, the kernel OHCI code appears to have 
  41power on problems with some chipsets.  If you are having problems 
  42connecting to your RIO 500, try turning it on first and then plugging it 
  43into the USB cable.  
  44
  45Contact information:
  46--------------------
  47
  48   The main page for the project is hosted at sourceforge.net in the following
  49   URL: <http://rio500.sourceforge.net>. You can also go to the project's
  50   sourceforge home page at: <http://sourceforge.net/projects/rio500/>.
  51   There is also a mailing list: rio500-users@lists.sourceforge.net
  52
  53Authors:
  54-------
  55
  56Most of the code was written by Cesar Miquel <miquel@df.uba.ar>. Keith 
  57Clayton <kclayton@jps.net> is incharge of the PPC port and making sure
  58things work there. Bruce Tenison <btenison@dibbs.net> is adding support
  59for .fon files and also does testing. The program will mostly sure be
  60re-written and Pete Ikusz along with the rest will re-design it. I would
  61also like to thank Tri Nguyen <tmn_3022000@hotmail.com> who provided use 
  62with some important information regarding the communication with the Rio.
  63
  64ADDITIONAL INFORMATION and Userspace tools
  65
  66http://rio500.sourceforge.net/
  67
  68
  69REQUIREMENTS
  70
  71A host with a USB port.  Ideally, either a UHCI (Intel) or OHCI
  72(Compaq and others) hardware port should work.
  73
  74A Linux development kernel (2.3.x) with USB support enabled or a
  75backported version to linux-2.2.x.  See http://www.linux-usb.org for
  76more information on accomplishing this.
  77
  78A Linux kernel with RIO 500 support enabled.
  79
  80'lspci' which is only needed to determine the type of USB hardware
  81available in your machine.
  82
  83CONFIGURATION
  84
  85Using `lspci -v`, determine the type of USB hardware available.
  86
  87  If you see something like:
  88
  89    USB Controller: ......
  90    Flags: .....
  91    I/O ports at ....
  92
  93  Then you have a UHCI based controller.
  94
  95  If you see something like:
  96
  97     USB Controller: .....
  98     Flags: ....
  99     Memory at .....
 100
 101  Then you have a OHCI based controller.
 102
 103Using `make menuconfig` or your preferred method for configuring the
 104kernel, select 'Support for USB', 'OHCI/UHCI' depending on your
 105hardware (determined from the steps above), 'USB Diamond Rio500 support', and
 106'Preliminary USB device filesystem'.  Compile and install the modules
 107(you may need to execute `depmod -a` to update the module
 108dependencies).
 109
 110Add a device for the USB rio500:
 111  `mknod /dev/usb/rio500 c 180 64`
 112
 113Set appropriate permissions for /dev/usb/rio500 (don't forget about
 114group and world permissions).  Both read and write permissions are
 115required for proper operation.
 116
 117Load the appropriate modules (if compiled as modules):
 118
 119  OHCI:
 120    modprobe usbcore
 121    modprobe usb-ohci
 122    modprobe rio500
 123
 124  UHCI:
 125    modprobe usbcore
 126    modprobe usb-uhci  (or uhci)
 127    modprobe rio500
 128
 129That's it.  The Rio500 Utils at: http://rio500.sourceforge.net should
 130be able to access the rio500.
 131
 132BUGS
 133
 134If you encounter any problems feel free to drop me an email.
 135
 136Bruce Tenison
 137btenison@dibbs.net
 138
 139
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