From: Dan Carpenter <dan.carpenter@oracle.com>
To: Nam Cao <cvn249@gmail.com>
Cc: gregkh@linuxfoundation.org,
paulo.miguel.almeida.rodenas@gmail.com,
linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org,
realwakka@gmail.com
Subject: Re: [PATCH] staging: pi433: allow max bit rate of 300kps
Date: Tue, 15 Mar 2022 21:14:27 +0300 [thread overview]
Message-ID: <20220315181427.GS3293@kadam> (raw)
In-Reply-To: <20220315180820.7393-1-cvn249@gmail.com>
On Tue, Mar 15, 2022 at 07:08:20PM +0100, Nam Cao wrote:
> diff --git a/drivers/staging/pi433/TODO b/drivers/staging/pi433/TODO
> index 5cf3fd99d521..8530bbe61d70 100644
> --- a/drivers/staging/pi433/TODO
> +++ b/drivers/staging/pi433/TODO
> @@ -1,5 +1,3 @@
> * currently the code introduces new IOCTLs. I'm afraid this is a bad idea.
> -> Replace this with another interface, hints are welcome!
> * Some missing data (marked with ###) needs to be added in the documentation
> -* Change (struct pi433_tx_cfg)->bit_rate to be a u32 so that we can support
> - bit rates up to 300kbps per the spec.
> diff --git a/drivers/staging/pi433/pi433_if.h b/drivers/staging/pi433/pi433_if.h
> index 25ee0b77a32c..c958dcfa9f96 100644
> --- a/drivers/staging/pi433/pi433_if.h
> +++ b/drivers/staging/pi433/pi433_if.h
> @@ -51,7 +51,7 @@ enum option_on_off {
> #define PI433_TX_CFG_IOCTL_NR 0
> struct pi433_tx_cfg {
> __u32 frequency;
> - __u16 bit_rate;
> + __u32 bit_rate;
> __u32 dev_frequency;
> enum modulation modulation;
> enum mod_shaping mod_shaping;
> @@ -99,7 +99,7 @@ struct pi433_tx_cfg {
> #define PI433_RX_CFG_IOCTL_NR 1
> struct pi433_rx_cfg {
> __u32 frequency;
> - __u16 bit_rate;
> + __u32 bit_rate;
> __u32 dev_frequency;
>
> enum modulation modulation;
You cannot change this because it is part of the UAPI.
Also this API is rubbish. Instead you should create sysfs files to
set the bit_rate.
regards,
dan carpenter
prev parent reply other threads:[~2022-03-15 18:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-15 18:08 [PATCH] staging: pi433: allow max bit rate of 300kps Nam Cao
2022-03-15 18:14 ` Dan Carpenter [this message]
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