linux-kernel - Re: [PATCH V0 4/7] usb: common: eud: Added the driver support for Embedded USB Debugger(EUD)

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Message-ID: <576a1eac007ac512ba47d5d3f761ec9a@codeaurora.org>
Date:   Tue, 05 Oct 2021 19:28:30 +0530
From:   schowdhu@...eaurora.org
To:     Joe Perches <joe@...ches.com>
Cc:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org,
        Bryan O'Donoghue <pure.logic@...us-software.ie>,
        Greg KH <greg@...ah.com>, linux-kernel@...r.kernel.org,
        ckadabi@...eaurora.org, tsoni@...eaurora.org,
        bryanh@...eaurora.org, psodagud@...eaurora.org,
        satyap@...eaurora.org, pheragu@...eaurora.org,
        Rajendra Nayak <rnayak@...eaurora.org>,
        Sibi Sankar <sibis@...eaurora.org>,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
Subject: Re: [PATCH V0 4/7] usb: common: eud: Added the driver support for
 Embedded USB Debugger(EUD)

On 2021-10-05 12:44, Joe Perches wrote:
> On Mon, 2021-10-04 at 09:42 -0700, Bjorn Andersson wrote:
>> On Mon 04 Oct 04:16 PDT 2021, Souradeep Chowdhury wrote:
>> 
>> > Add support for control peripheral of EUD (Embedded USB Debugger) to
>> > listen to events such as USB attach/detach, pet EUD to indicate software
>> > is functional.Reusing the platform device kobj, sysfs entry 'enable' is
>> > created to enable or disable EUD.
> []
>> > diff --git a/drivers/usb/common/qcom_eud.c b/drivers/usb/common/qcom_eud.c
> []
>> > +static ssize_t enable_show(struct device *dev,
>> > +		struct device_attribute *attr, char *buf)
>> > +{
>> > +	struct eud_chip *chip = dev_get_drvdata(dev);
>> > +
>> > +	return sprintf(buf, "%d", chip->enable);
> 
> trivia:
> 
> should probably use sysfs_emit and have a trailing '\n' in the format.

Ack