Mastering Embedded Linux Programming - Second Edition

Linking hardware with device drivers

You have seen in the preceding section how an Ethernet adapter is described using a device tree and using platform data. The corresponding driver code is in drivers/net/ethernet/smsc/smc91x.c, and it works with both the device tree and platform data. Here is the initialization code, once again edited for clarity:

static const struct of_device_id smc91x_match[] = {   { .compatible = "smsc,lan91c94", },   { .compatible = "smsc,lan91c111", },   {}, }; MODULE_DEVICE_TABLE(of, smc91x_match); static struct platform_driver smc_driver = {   .probe          = smc_drv_probe,   .remove         = smc_drv_remove,   .driver         = {     .name   = "smc91x",     .of_match_table = of_match_ptr(smc91x_match),   }, }; static int __init smc_driver_init(void) ...