From: David Lechner <dlechner@baylibre.com>
To: "Uwe Kleine-König" <u.kleine-koenig@baylibre.com>,
linux-pwm@vger.kernel.org
Cc: Trevor Gamblin <tgamblin@baylibre.com>
Subject: Re: [PATCH v2 5/8] pwm: Add support for pwmchip devices for faster and easier userspace access
Date: Mon, 15 Jul 2024 14:37:57 -0500 [thread overview]
Message-ID: <80dbe964-6e83-4085-b56c-609babac2ee5@baylibre.com> (raw)
In-Reply-To: <7e50f9901d63c3aa27cdd02194f95b0ed79765f6.1721040875.git.u.kleine-koenig@baylibre.com>
On 7/15/24 6:16 AM, Uwe Kleine-König wrote:
> +#define PWM_IOCTL_GET_NUM_PWMS _IO(0x75, 0)
What is the use case for PWM_IOCTL_GET_NUM_PWMS? This info is already available
from sysfs, and it doesn't seem like there would be any performance consideration
for using an ioctl to get the same info.
next prev parent reply other threads:[~2024-07-15 19:37 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-15 11:16 [PATCH v2 0/8] pwm: New abstraction and userspace API Uwe Kleine-König
2024-07-15 11:16 ` [PATCH v2 1/8] pwm: Simplify pwm_capture() Uwe Kleine-König
2024-07-15 11:16 ` [PATCH v2 2/8] pwm: Add more locking Uwe Kleine-König
2024-07-15 16:56 ` David Lechner
2024-07-15 20:08 ` Uwe Kleine-König
2024-07-15 11:16 ` [PATCH v2 3/8] pwm: New abstraction for PWM waveforms Uwe Kleine-König
2024-07-15 18:55 ` David Lechner
2024-07-15 20:17 ` Uwe Kleine-König
2024-07-16 7:29 ` Nuno Sá
2024-07-15 11:16 ` [PATCH v2 4/8] pwm: Provide new consumer API functions for waveforms Uwe Kleine-König
2024-07-15 22:23 ` David Lechner
2024-07-16 7:06 ` Uwe Kleine-König
2024-07-16 14:28 ` David Lechner
2024-07-17 9:13 ` Uwe Kleine-König
2024-07-15 11:16 ` [PATCH v2 5/8] pwm: Add support for pwmchip devices for faster and easier userspace access Uwe Kleine-König
2024-07-15 19:37 ` David Lechner [this message]
2024-07-15 19:52 ` Uwe Kleine-König
2024-07-30 10:26 ` Uwe Kleine-König
2024-07-30 18:41 ` David Lechner
2024-07-31 6:49 ` Uwe Kleine-König
2024-07-15 11:16 ` [PATCH v2 6/8] pwm: Add tracing for waveform callbacks Uwe Kleine-König
2024-07-15 11:16 ` [PATCH v2 7/8] pwm: axi-pwmgen: Implementation of the " Uwe Kleine-König
2024-07-15 11:16 ` [PATCH v2 8/8] pwm: stm32: " Uwe Kleine-König
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