linux-kernel - Re: [PATCH V1 0/3] Add notifier call chain to Embedded USB Debug(EUD) driver

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Date:   Wed, 12 Jul 2023 18:43:59 +0200
From:   Konrad Dybcio <konradybcio@...nel.org>
To:     Souradeep Chowdhury <quic_schowdhu@...cinc.com>,
        linux-arm-msm@...r.kernel.org, linux-usb@...r.kernel.org,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        gregkh@...uxfoundation.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Sibi Sankar <quic_sibis@...cinc.com>,
        Rajendra Nayak <quic_rjendra@...cinc.com>
Subject: Re: [PATCH V1 0/3] Add notifier call chain to Embedded USB Debug(EUD)
 driver



On 12.07.2023 10:22, Souradeep Chowdhury wrote:
> This patch series adds the notifier chain to the Embedded USB Debug(EUD) driver.
> The notifier chain is used to check the role switch status of EUD. Since EUD can
> function only in device mode, other modules trying to do role-switch on the same
> port have to first check the EUD status by calling this notifier chain and based
> on the status proceed or block their role-switching step. The modules can call
> the notifier through the call eud_notifier_call_chain and pass their own
> role switch state as the argument. This chain will also be able to handle the
> scenario of multiple modules switching roles on the same port since this can
> create a priority and ordering among them for conflict resolution.
> 
> Souradeep Chowdhury (3):
>   usb: misc: Add the interface for notifier call for Embedded USB
>     Debugger(EUD)
>   usb: misc: Add notifier call chain to Embedded USB Debug(EUD) driver
>   MAINTAINERS: Add the header file entry for Embedded USB debugger(EUD)
Please actually CC all maintainers, as present in the MAINTAINERS file..

Consider using b4:

https://b4.docs.kernel.org/en/latest/index.html

Konrad
> 
>  MAINTAINERS                          |  1 +
>  drivers/usb/misc/qcom_eud.c          | 52 ++++++++++++++++++++++++++--
>  drivers/usb/misc/qcom_eud_notifier.h | 10 ++++++
>  3 files changed, 61 insertions(+), 2 deletions(-)
>  create mode 100644 drivers/usb/misc/qcom_eud_notifier.h
> 
> --
> 2.17.1
>