1. 15 Jan, 2009 1 commit
    • Clemens Ladisch's avatar
      sound: virtuoso: do not overwrite EEPROM on Xonar D2/D2X · 7e86c0e6
      Clemens Ladisch authored
      On the Asus Xonar D2 and D2X models, the SPI chip select signal for the
      fourth DAC shares its pin with the serial clock for the EEPROM that
      contains the PCI subdevice ID values.  It appears that when DAC
      registers are written and some other unknown conditions occur (probably
      noise on the EEPROM's chip select line), the EEPROM gets overwritten
      with garbage, which makes it impossible to properly detect the card
      later.
      
      Therefore, we better avoid DAC register writes and make sure that the
      driver works with the DAC's registers' default values.  Consequently,
      the sample format is now I2S instead of left-justified (no user-visible
      change), and the DAC's volume/mute registers cannot be used anymore
      (volume changes are now done by the software volume plugin).
      Signed-off-by: default avatarClemens Ladisch <clemens@ladisch.de>
      Cc: <stable@kernel.org>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      7e86c0e6
  2. 13 Jan, 2009 14 commits
  3. 12 Jan, 2009 25 commits