Date: Sat, 28 Jun 2008 19:48:33 +0200 From: Hans Petter Selasky <hselasky@c2i.net> To: FreeBSD USB List <FreeBSD-usb@freebsd.org> Cc: ticso@cicely.de Subject: Re: number of /dev/usb nodes Message-ID: <200806281948.37009.hselasky@c2i.net> In-Reply-To: <484C0E6B.5020306@telenix.org> References: <484AC2F1.1000806@telenix.org> <20080608155015.GO71712@cicely7.cicely.de> <484C0E6B.5020306@telenix.org>
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Hi, I am about to set the following USB limits: #define USB_BUS_MAX 256 /* units */ #define USB_DEV_MAX 128 /* units */ #define USB_IFACE_MAX 32 /* units */ #define USB_EP_MAX (2*16) /* hardcoded */ #define USB_FIFO_MAX (2 * USB_EP_MAX) The multiplication product of (BUS*DEV*IFACE*FIFO) must fit within a 32-bit unsigned integer. Any objections ? --HPS
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