An error occurred fetching the project authors.
  1. 26 May, 2002 1 commit
    • Georg Acher's avatar
      [PATCH] small fixes for usb-uhci-hcd · c57b4805
      Georg Acher authored
      the attached patch for usb-uhci-hcd includes the possibility to specify the
      FSBR-mode and depth-first-search-modes via module parameters. Thanks go to
      Kevin (kjsisson@bellsouth.net) for this nice idea. He had problems with
      stv0680-based cameras when using the default (breadth first) methods.
      
      The interval-value for isochronous transfers is also now supported.
      
      Additionally the patch removes a few typos, obsolete comments+code and
      a few non-portable variable declarations.
      c57b4805
  2. 17 May, 2002 1 commit
    • Georg Acher's avatar
      [PATCH] USB-UHCI-HCD · a96a4b53
      Georg Acher authored
      After maturing for more than a month, I decided that it's enough...
      So here's the patch for the HCD-version of usb-uhci, I called it
      usb-uhci-hcd. For me, the usual devices work (TM).
      
      Since the internals haven't changed much, I don't expect much difference to
      usb-uhci in functionality and performance.
      
      There is one major improvement: I've added a (preliminary) watchdog, that
      regularly checks whether UHCI interrupts are coming through. If they are
      "missing", ie. the HC halted without saying so, the HC is "re-animated" by a
      real and clean restart, which is (internally) equivalent to a module-reload.
      This is especially for VIA-chips which get comatose quite easily by babble
      or other incorrect transfers.
      
      The side effect is, of course, disconnects for all connected devices, but
      they re-appear after a few seconds and were dead before anyway. So keyboard
      and mouse work again, which is IMO a _very_ useful thing :-)
      
      Another point: The watchdog (currently with moderate 8 interrupts/s) detects
      IRQ-problems, so the misleading "device doesn't accept new device"-message
      is replaced by an immediate error.
      
      More comments and the separation into multiple files (I've taken ohci-hcd as
      an example) should make the code more concise...
      
      A few things are still on the todo-list and will come later:
      - A few watchdog modifications (fewer interrupts, better diagnostics)
      - Support for module "tune"-parameters for breadth/depth search, debug etc.
      - interval support for ISO
      - More SMP-tests
      - maybe changes for reference counting when it is clear what survives :-)
      a96a4b53