diff options
| author | Spencer E. Olson <olsonse@umich.edu> | 2018-10-03 14:56:02 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-10-09 15:32:38 +0200 |
| commit | d7569ad766511fe708a8bd7476baa305d1510daf (patch) | |
| tree | 685c4f10769c8bce4dc734946e5211c884fc9d98 /drivers/staging/comedi/comedidev.h | |
| parent | 5912827dfe78a0befae8a5e44f419eaf3deced72 (diff) | |
staging: comedi: add new device-global config interface
Adds interface for configuring options that are global to all sub-devices.
For now, only options to configure device-globally identified signal routes
have been defined.
Signed-off-by: Spencer E. Olson <olsonse@umich.edu>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/comedidev.h')
| -rw-r--r-- | drivers/staging/comedi/comedidev.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h index 5775a93917f4..a7d569cfca5d 100644 --- a/drivers/staging/comedi/comedidev.h +++ b/drivers/staging/comedi/comedidev.h @@ -516,6 +516,15 @@ struct comedi_driver { * called when @use_count changes from 0 to 1. * @close: Optional pointer to a function set by the low-level driver to be * called when @use_count changed from 1 to 0. + * @insn_device_config: Optional pointer to a handler for all sub-instructions + * except %INSN_DEVICE_CONFIG_GET_ROUTES of the %INSN_DEVICE_CONFIG + * instruction. If this is not initialized by the low-level driver, a + * default handler will be set during post-configuration. + * @get_valid_routes: Optional pointer to a handler for the + * %INSN_DEVICE_CONFIG_GET_ROUTES sub-instruction of the + * %INSN_DEVICE_CONFIG instruction set. If this is not initialized by the + * low-level driver, a default handler that copies zero routes back to the + * user will be used. * * This is the main control data structure for a COMEDI device (as far as the * COMEDI core is concerned). There are two groups of COMEDI devices - @@ -565,6 +574,11 @@ struct comedi_device { int (*open)(struct comedi_device *dev); void (*close)(struct comedi_device *dev); + int (*insn_device_config)(struct comedi_device *dev, + struct comedi_insn *insn, unsigned int *data); + unsigned int (*get_valid_routes)(struct comedi_device *dev, + unsigned int n_pairs, + unsigned int *pair_data); }; /* |