Date: Fri, 21 Sep 2001 16:22:29 +0530 (IST) From: Mohana Krishna Penumetcha <pmk@sasken.com> To: <hackers@FreeBSD.ORG> Subject: arguments to driver ioctl commands SIOC[ADD|DEL]MULTI Message-ID: <Pine.GSO.4.30.0109211600050.4864-100000@sunk2.sasi.com> In-Reply-To: <66893.1001060088@critter>
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when the driver ioctl (i.e. ifp->if_ioctl) is called with either SIOCADDMULTI or SIOCDELMULT, NULL value is passed as data argument to the ioctl function. but going through the code(in net/if.c file if_addmulti and if_delmulti functions) doesn't reveal the logic behind it. can anyone tell me why NULL pointer is passed instead of pointer to the multicast address structre either being added or deleted. my implementation of the driver requires this value, can anyone suggest a method to get those values? regards, mohan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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