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SubjectRe: [PATCH] cdc_ncm: Implement the 32-bit version of NCM Transfer Block
From: Alexander Bersenev <>
Date: Fri, 6 Mar 2020 01:33:16 +0500

> The NCM specification defines two formats of transfer blocks: with 16-bit
> fields (NTB-16) and with 32-bit fields (NTB-32). Currently only NTB-16 is
> implemented.
> This patch adds the support of NTB-32. The motivation behind this is that
> some devices such as E5785 or E5885 from the current generation of Huawei
> LTE routers do not support NTB-16. The previous generations of Huawei
> devices are also use NTB-32 by default.
> Also this patch enables NTB-32 by default for Huawei devices.
> During the 2019 ValdikSS made five attempts to contact Huawei to add the
> NTB-16 support to their router firmware, but they were unsuccessful.
> Signed-off-by: Alexander Bersenev <>

Oliver et al., please review.

Thank you.

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