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Date: Fri, 30 May 2014 12:45:48 +0100 From: Jim Baxter <jim_baxter@...tor.com> To: Bjørn Mork <bjorn@...k.no> CC: Felipe Balbi <balbi@...com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Eric Dumazet <eric.dumazet@...il.com>, David Laight <David.Laight@...LAB.COM>, <netdev@...r.kernel.org> Subject: Re: [PATCH v1 1/3] usb: gadget: NCM: RX function support multiple NDPs On 29/05/14 19:55, Bjørn Mork wrote: > Jim Baxter <jim_baxter@...tor.com> writes: > >> The NDP was ignoring the wNextNdpIndex in the NDP which >> means that NTBs containing multiple NDPs would have missed >> frames. > > Well, just for the record: I believe this field was meant to be reserved > and always 0 in the CDC NCM spec. Table 3-3, describing 16bit NDPs, > says so. But reading the spec now, I noticed that there is an > inconsistency between table 3-3 and table 3-4 describing 32bit NDPs. It > looks like the field is not reserved in the 32bit version. > > I am pretty sure that is a specification error, but I guess it doesn't > harm to implement the support anyway. And it paves the way for an MBIM > gadget :-) > > > > > Bjørn > Yes I was looking at Figure 3-1, Figure 3-2 which all state it is a link. I must have been reading Table 3-4. I am glad to see it helps with the MBIM specification :-) . Jim -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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