From: Luke Jones <luke@ljones.dev>
To: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Hans de Goede <hdegoede@redhat.com>,
Mark Gross <markgross@kernel.org>,
Platform Driver <platform-driver-x86@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/5] asus-wmi: Add support for TUF laptop keyboard RGB mode control
Date: Sat, 06 Aug 2022 22:33:45 +1200 [thread overview]
Message-ID: <90W6GR.9Z5CYBT7NOHJ1@ljones.dev> (raw)
In-Reply-To: <CAHp75VcYba6wYwkMo_Q_QEZsr4wyfDB5czu13w-y6hfQ13CkvQ@mail.gmail.com>
Hi Andy,
On Sat, Aug 6 2022 at 11:56:58 +0200, Andy Shevchenko
<andy.shevchenko@gmail.com> wrote:
> On Fri, Aug 5, 2022 at 10:20 AM Luke D. Jones <luke@ljones.dev> wrote:
>>
>> Adds support for TUF laptop RGB mode control.
>>
>> Two paths are added:
>> - /sys/devices/platform/asus-nb-wmi/kernel_rgb_mode
>> - /sys/devices/platform/asus-nb-wmi/kernel_rgb_mode_index
>
> ...
>
>> +static int keyboard_rgb_mode_check_present(struct asus_wmi *asus)
>> +{
>> + u32 result;
>> + int err;
>> +
>> + asus->keyboard_rgb_mode_available = false;
>> +
>> + err = asus_wmi_get_devstate(asus,
>> ASUS_WMI_DEVID_TUF_RGB_MODE, &result);
>> + if (err) {
>> + if (err == -ENODEV)
>> + return 0;
>> + return err;
>> + }
>
>> + if (result & ASUS_WMI_DSTS_PRESENCE_BIT) {
>> + asus->keyboard_rgb_mode_available = true;
>> + }
>
> {} are not needed (except if they will be utilized in the next patches
> in the series).
I've usually been pretty good at catching these. I must not have run
the patch check script on this one.
Fixed.
>
>> + return 0;
>> +}
>
> ...
>
>> + if (sscanf(buf, "%hhd %hhd %hhd", &save, &mode, &speed) !=
>> 3)
>> + return -EINVAL;
>
> Usually we have three separate nodes for that, but they are kinda
> hidden in one driver, so I don't care much.
I don't really understand what you mean sorry.
>
> ...
>
>> + asus->keyboard_rgb_mode.save = save > 0 ? 1 : 0;
>
> So, it's actually boolean.
>
> You may write it as
>
> ...save = !!save;
Err okay. Done.
>
>> + /* These are the known usable modes across all TUF/ROG */
>> + asus->keyboard_rgb_mode.mode = mode < 12 && mode != 9 ?
>> mode : 0x0a;
>> +
>> + if (speed == 0)
>> + asus->keyboard_rgb_mode.speed = 0xe1;
>> + else if (speed == 1)
>> + asus->keyboard_rgb_mode.speed = 0xeb;
>> + else if (speed == 2)
>> + asus->keyboard_rgb_mode.speed = 0xf5;
>
>> + else
>> + asus->keyboard_rgb_mode.speed = 0xeb;
>
> So the 1 is default then, why not use switch-case to show this
> explicitly?
>
> switch (speed) {
> case 0:
> ...
> break;
> case 1:
> default:
> ...
> break;
> case 2:
> ...
> break;
> }
>
> Yes, it's longer, but I think it's cleaner.
Agreed. Done.
>
>> + err = tuf_rgb_brightness_set(cdev, cdev->brightness);
>> + if (err)
>> + return err;
>> + return 0;
>
> return tuf_rgb_brightness_set(...);
This causes a hang (waiting for return somewhere?) if I don't return
count. Especially true if the return is 0.
>
>> +}
>
> --
> With Best Regards,
> Andy Shevchenko
next prev parent reply other threads:[~2022-08-06 10:34 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-05 8:19 [PATCH 0/5] asus-wmi: Add support for RGB keyboards Luke D. Jones
2022-08-05 8:19 ` [PATCH 1/5] asus-wmi: Add basic support for TUF laptop keyboard RGB Luke D. Jones
2022-08-06 9:44 ` Andy Shevchenko
2022-08-06 10:16 ` Luke Jones
2022-08-06 10:27 ` Andy Shevchenko
2022-08-06 10:27 ` Andy Shevchenko
2022-08-06 17:30 ` Barnabás Pőcze
2022-08-07 1:54 ` Luke Jones
2022-08-05 8:19 ` [PATCH 2/5] asus-wmi: Add support for TUF laptop keyboard RGB mode control Luke D. Jones
2022-08-06 9:56 ` Andy Shevchenko
2022-08-06 10:33 ` Luke Jones [this message]
2022-08-06 11:12 ` Andy Shevchenko
2022-08-05 8:19 ` [PATCH 3/5] asus-wmi: Add support for TUF laptop keyboard states Luke D. Jones
2022-08-05 12:08 ` Pavel Machek
2022-08-05 21:29 ` Luke Jones
2022-08-07 7:44 ` Luke Jones
2022-08-07 12:41 ` Pavel Machek
2022-08-09 23:03 ` Luke Jones
2022-08-05 8:19 ` [PATCH 4/5] asus-wmi: Document many of the undocumented API Luke D. Jones
2022-08-05 21:43 ` kernel test robot
2022-08-06 10:00 ` Andy Shevchenko
2022-08-05 8:19 ` [PATCH 5/5] asus-wmi: Convert all attr _show to use sysfs_emit Luke D. Jones
2022-08-06 10:05 ` Andy Shevchenko
2022-08-05 12:05 ` [PATCH 0/5] asus-wmi: Add support for RGB keyboards Pavel Machek
2022-08-05 21:30 ` Luke Jones
2022-08-06 9:10 ` Andy Shevchenko
2022-08-06 9:32 ` Luke Jones
2022-08-06 9:48 ` Andy Shevchenko
2022-08-06 10:02 ` Andy Shevchenko
2022-08-06 10:48 ` Luke Jones
2022-08-06 11:16 ` Andy Shevchenko
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