Comparing Driver Models
Input/Output Methods 6-7
6.3.3 Creating a Device for Use with the SIO/DEV Model
If you plan to use SIO streams with the SIO/DEV model and a device driver
that uses the DEV_Fxns function table type, create a user-defined device
statically or with a DEV_createDevice call similar to that shown below:
DEV_Attrs devAttrs ={
NULL,
/* device id */
NULL, /* device parameters */
DEV_SIOTYPE, /* type of the device */
NULL /* device global data ptr */
}
status = DEV_createDevice("/codec", &DSK6X_EDMA_DEVFXNS,
(Fxn)DSK6X_DEV_init, &devAttrs);
The device function tables passed to DEV_createDevice should be of type
DEV_Fxns.
6.3.4 Creating a Device for Use with Provided Software Drivers
DSP/BIOS provides several software drivers that use the SIO/DEV model.
These are described in the DEV module section of the TMS320 DSP/BIOS
API Reference Guide for your platform. Creating the user-defined device for
these drivers is similar to creating a user-defined device for other SIO/DEV
model drivers.
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