TODO.lirc_zilog 1.7 KB

123456789101112131415161718192021222324252627282930313233343536
  1. 1. Both ir-kbd-i2c and lirc_zilog provide support for RX events for
  2. the chips supported by lirc_zilog. Before moving lirc_zilog out of staging:
  3. a. ir-kbd-i2c needs a module parameter added to allow the user to tell
  4. ir-kbd-i2c to ignore Z8 IR units.
  5. b. lirc_zilog should provide Rx key presses to the rc core like ir-kbd-i2c
  6. does.
  7. 2. lirc_zilog module ref-counting need examination. It has not been
  8. verified that cdev and lirc_dev will take the proper module references on
  9. lirc_zilog to prevent removal of lirc_zilog when the /dev/lircN device node
  10. is open.
  11. (The good news is ref-counting of lirc_zilog internal structures appears to be
  12. complete. Testing has shown the cx18 module can be unloaded out from under
  13. irw + lircd + lirc_dev, with the /dev/lirc0 device node open, with no adverse
  14. effects. The cx18 module could then be reloaded and irw properly began
  15. receiving button presses again and ir_send worked without error.)
  16. 3. Bridge drivers, if able, should provide a chip reset() callback
  17. to lirc_zilog via struct IR_i2c_init_data. cx18 and ivtv already have routines
  18. to perform Z8 chip resets via GPIO manipulations. This would allow lirc_zilog
  19. to bring the chip back to normal when it hangs, in the same places the
  20. original lirc_pvr150 driver code does. This is not strictly needed, so it
  21. is not required to move lirc_zilog out of staging.
  22. Note: Both lirc_zilog and ir-kbd-i2c support the Zilog Z8 for IR, as programmed
  23. and installed on Hauppauge products. When working on either module, developers
  24. must consider at least the following bridge drivers which mention an IR Rx unit
  25. at address 0x71 (indicative of a Z8):
  26. ivtv cx18 hdpvr pvrusb2 bt8xx cx88 saa7134