eegdev-biosemi(5) [debian man page]

EEGDEV-BIOSEMI(5)					       EEGDEV library manual						 EEGDEV-BIOSEMI(5)

NAME

       eegdev-biosemi - eegdev backend for Biosemi ActiveTwo hardware

DESCRIPTION

       The biosemi plugin implements the backend for the eegdev library for Biosemi Activetwo hardware. It supports both Mk1 and Mk2 models.

CONFIGURATION

       This  plugin  supports several options. The default value will be used if none of the configuration files nor the configuration string (see
       egd_open(3)) specify the option.

       numch  Number of channel that should be supported by the BIOSEMI system. Accepted values are 32, 64, 128 or 256. Beware that the value  can
	      be  set  superior  to  the  actual number of ADC subsystem embedded into the acquisition hardware. If it is the case, the additional
	      channel will return always 0. The default value is "64".

FILES

       /etc/eegdev/eegdev.conf
	   Shared configuration file.

       /etc/eegdev/biosemi.conf
	   Configuration file loaded when the plugin is used. The settings specified here overrides the settings in the shared configuration file.

SEE ALSO

       egd_open(3), eegdev-options(5)

EPFL
								       2012							 EEGDEV-BIOSEMI(5)

EGD_GET_CAP(3)						       EEGDEV library manual						    EGD_GET_CAP(3)

NAME

       egd_get_cap - Query various information about the device capabilities

SYNOPSIS

       #include <eegdev.h>

       int egd_get_cap(const struct eegdev* dev, int cap, void* val);

DESCRIPTION

       egd_get_cap()  returns  the  information about the capability specified by cap of the recording device referenced by dev by the mean of the
       pointer val.

       The type of pointer passed through val is dependent on the requested capability cap which can be  one  the  following  (The  expected  type
       pointed by val is provided in parenthesis):

       EGD_CAP_FS (int)
	      Sampling frequency that is currently set. The same value is returned by the function.

       EGD_CAP_TYPELIST (const int*)
	      Array  of  sensor  types	sampled  by the device terminated by -1. These values became valid as argument for egd_sensor_name(3) when
	      opening the device dev if they were not yet before. The number of elements in the array (excluding the -1 element)  is  provided	by
	      the return value of the function.

       EGD_CAP_DEVTYPE (const char*)
	      Null  terminated	string	describing the type of the recording device (Manufacturer and model if dev refers to actual hardware). The
	      length of string (excluding the null character) is provided by the return value of the function.

       EGD_DEVID (const char*)
	      Null-terminated string describing the model of the recording device (or an unique identifier of the resource). The length of  string
	      (excluding the null character) is provided by the return value of the function.

RETURN VALUE

       In case of success, the function returns a positive value depending on the requested capability. Otherwise, -1 is returned and errno is set
       accordingly.

ERRORS

       egd_get_cap() will fail if:

       EINVAL dev is NULL, cap is not valid value or val is NULL while cap is not EGD_CAP_FS.

SEE ALSO

       egd_sensor_name(3)

EPFL
								       2011							    EGD_GET_CAP(3)