hi My name is Aji Abraham, now working with device drivers. the word "softc" and the function "device_get_softc(dev)" getting confuse me a lot. am listing some query below .. pls help me ..
Q1 In a free BSD driver Code, there are two device depended structures struct xx_softc { ....... ...... }; struct xx_if_softc { ....... ...... }; sizeof(struct xx_softc ) is 68 sizeof(struct xx_if_softc ) is 1186 And in device attach function xx_attach(dev){ struct xx_softc *sc; struct xx_if_softc *if_sc; sc_if = device_get_softc(dev); sc = device_get_softc(device_get_parent(dev)); sc_if-> ..... sc-> .... ....... ...... } Both allocation uses the same function. How it possible ? can we access all structure member ? Regards Aji Abraham _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"