Messages in this thread | | | From | Bjørn Mork <> | Subject | Re: [PATCH v1 1/3] usb: gadget: NCM: RX function support multiple NDPs | Date | Thu, 29 May 2014 20:55:16 +0200 |
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Jim Baxter <jim_baxter@mentor.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 :-)
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