From: Joe Perches <joe@perches.com>
To: Srinivasan Raju <srini.raju@purelifi.com>
Cc: mostafa.afgani@purelifi.com, Kalle Valo <kvalo@codeaurora.org>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
Rob Herring <robh@kernel.org>,
Lukas Bulwahn <lukas.bulwahn@gmail.com>,
open list <linux-kernel@vger.kernel.org>,
"open list:NETWORKING DRIVERS (WIRELESS)"
<linux-wireless@vger.kernel.org>,
"open list:NETWORKING DRIVERS" <netdev@vger.kernel.org>
Subject: Re: [PATCH] [v9] wireless: Initial driver submission for pureLiFi STA devices
Date: Wed, 02 Dec 2020 23:53:48 -0800 [thread overview]
Message-ID: <ffbf22c4a043f73548157c6620781b8f9a00dd40.camel@perches.com> (raw)
In-Reply-To: <20201203050947.156241-1-srini.raju@purelifi.com>
On Thu, 2020-12-03 at 10:39 +0530, Srinivasan Raju wrote:
> This introduces the pureLiFi LiFi driver for LiFi-X, LiFi-XC
> and LiFi-XL USB devices.
The below is a trivial readability possible enhancement and should not
hinder this patch being applied.
> diff --git a/drivers/net/wireless/purelifi/dbgfs.c b/drivers/net/wireless/purelifi/dbgfs.c
[]
> +ssize_t purelifi_store_frequency(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf,
> + size_t len)
> +{
> + int i, r, row, col, predivider, feedback_divider, output_div_0;
> + int output_div_1, output_div_2, clkout3_phase;
> + char values[6][4] = {{0}, {0} };
> + char usr_input[8] = {0};
> + bool valid = false;
> + int rv = 0;
> +
> + row = 0; col = 0;
> + for (i = 0; i < min(len, sizeof(values)); i++) {
> + values[row][col] = buf[i];
> + col++;
> + if (buf[i] == 0x20) {
> + row++;
> + col = 0;
> + } else if (buf[i] == 0x0A) {
> + if (row == 5 && col > 0) {
> + rv = sscanf((char *)&values[0][0],
> + "%d", &predivider);
Aren't the casts to (char *) redundant ?
> + if (rv != 1)
> + valid = false;
> + rv = sscanf((char *)&values[1][0],
> + "%d", &feedback_divider);
> + if (rv != 1)
> + valid = false;
> + rv = sscanf((char *)&values[2][0],
> + "%d", &output_div_0);
> + if (rv != 1)
> + valid = false;
> + rv = sscanf((char *)&values[3][0],
> + "%d", &output_div_1);
> + if (rv != 1)
> + valid = false;
> + rv = sscanf((char *)&values[4][0],
> + "%d", &output_div_2);
> + if (rv != 1)
> + valid = false;
> + rv = sscanf((char *)&values[5][0],
> + "%d", &clkout3_phase);
> + if (rv != 1)
> + valid = false;
> + valid = true;
trivia: this might be more intelligible with an array and a loop
int *index[] = {
&predivider,
&feedback_divider,
&output_div_0,
&output_div_1,
&output_div_2,
&clkout3_phase
};
valid = true;
i = 0;
while (valid && i < ARRAY_SIZE(index)) {
if (sscanf(&values[i][0], "%d", index[i]) != 1)
valid = false;
i++;
}
> +
> + break;
> + }
> + }
> + }
> +
> + if (valid) {
> + usr_input[0] = (char)predivider;
> + usr_input[1] = (char)feedback_divider;
> + usr_input[2] = (char)output_div_0;
> + usr_input[3] = (char)output_div_1;
> + usr_input[4] = (char)output_div_2;
> + usr_input[5] = (char)clkout3_phase;
> +
> + dev_info(dev, "options IP_DIV: %d VCO_MULT: %d OP_DIV_PHY: %d",
> + usr_input[0], usr_input[1], usr_input[2]);
> + dev_info(dev, "OP_DIV_CPU: %d OP_DIV_USB: %d CLK3_PH: %d\n",
> + usr_input[3], usr_input[4], usr_input[5]);
> +
> + r = usb_write_req((const u8 *)&usr_input[0],
> + sizeof(usr_input), USB_REQ_SET_FREQ);
> + if (r < 0)
> + dev_err(dev, "SET_FREQ failed (%d)\n", r);
> + } else {
> + dev_err(dev, "Your options are invalid\n");
> + }
> +
> + return len;
> +}
next prev parent reply other threads:[~2020-12-03 7:54 UTC|newest]
Thread overview: 118+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-24 15:18 [PATCH] staging: Initial driver submission for pureLiFi devices Srinivasan Raju
2020-09-24 15:36 ` Greg Kroah-Hartman
2020-09-24 17:24 ` Srinivasan Raju
2020-09-24 17:29 ` Greg Kroah-Hartman
2020-09-28 10:25 ` Srinivasan Raju
2020-09-24 15:37 ` Greg Kroah-Hartman
2020-09-24 18:28 ` Randy Dunlap
2020-09-28 10:27 ` Srinivasan Raju
2020-09-24 19:07 ` Dan Carpenter
2020-09-28 10:26 ` Srinivasan Raju
2020-09-28 10:19 ` [PATCH] [v2] wireless: " Srinivasan Raju
2020-09-28 12:07 ` Joe Perches
2020-09-28 12:53 ` Srinivasan Raju
2020-09-30 5:16 ` Leon Romanovsky
2020-09-30 5:29 ` Srinivasan Raju
2020-09-30 8:01 ` Kalle Valo
2020-09-30 9:55 ` Leon Romanovsky
2020-09-30 10:11 ` Johannes Berg
2020-09-30 10:44 ` Leon Romanovsky
2020-10-16 8:23 ` Kalle Valo
2020-09-30 8:05 ` Kalle Valo
2020-09-30 10:04 ` Leon Romanovsky
2020-10-14 6:19 ` [PATCH] [PATCH] [v3] wireless: Initial driver submission for pureLiFi STA devices Srinivasan Raju
2020-10-14 10:17 ` kernel test robot
2020-10-15 22:35 ` Joe Perches
2020-10-16 6:36 ` Srinivasan Raju
2020-10-16 6:34 ` [PATCH] [v4] " Srinivasan Raju
2020-10-16 8:58 ` Joe Perches
2020-10-16 10:13 ` Srinivasan Raju
2020-10-19 3:17 ` [PATCH] [v5] " Srinivasan Raju
2020-10-19 4:55 ` Joe Perches
2020-10-19 6:05 ` Srinivasan Raju
2020-10-19 8:38 ` [PATCH] [v6] " Srinivasan Raju
2020-10-19 16:07 ` Krishna Chaitanya
2020-10-19 16:40 ` Srinivasan Raju
2020-10-19 16:54 ` Joe Perches
2020-10-19 17:05 ` Srinivasan Raju
2020-11-16 9:22 ` [PATCH] [v7] " Srinivasan Raju
2020-11-16 20:45 ` Joe Perches
2020-11-18 3:24 ` Srinivasan Raju
2020-11-24 14:44 ` Kalle Valo
[not found] ` <20201124144448.4E95EC43460@smtp.codeaurora.org>
2020-11-26 5:01 ` Srinivasan Raju
2020-12-03 4:43 ` Srinivasan Raju
2020-12-03 15:58 ` Kalle Valo
2020-12-03 16:50 ` Srinivasan Raju
2020-12-19 13:15 ` Kalle Valo
2020-12-03 4:38 ` [PATCH] [v8] " Srinivasan Raju
2020-12-03 5:09 ` [PATCH] [v9] " Srinivasan Raju
2020-12-03 7:53 ` Joe Perches [this message]
2020-12-08 5:53 ` [PATCH] [v10] " Srinivasan Raju
2020-12-08 11:57 ` [PATCH] [v11] " Srinivasan Raju
2020-12-08 14:37 ` Kalle Valo
2020-12-19 12:51 ` Kalle Valo
2020-12-19 13:06 ` Kalle Valo
2020-12-19 13:14 ` Kalle Valo
2020-12-21 5:52 ` Srinivasan Raju
2020-12-21 5:57 ` Kalle Valo
2021-01-15 12:13 ` Srinivasan Raju
2021-01-05 13:19 ` [PATCH] [PATCH] [v12] " Srinivasan Raju
2021-02-12 11:49 ` [PATCH] [v13] " Srinivasan Raju
2021-02-12 13:44 ` Johannes Berg
2021-02-17 10:05 ` Kalle Valo
2021-02-19 5:15 ` Srinivasan Raju
2021-02-19 8:25 ` Johannes Berg
2021-02-24 10:41 ` Srinivasan Raju
2021-02-12 15:06 ` kernel test robot
2021-02-12 17:57 ` kernel test robot
2021-02-17 10:02 ` Kalle Valo
2021-02-17 10:13 ` Kalle Valo
2021-02-17 10:16 ` Srinivasan Raju
2021-02-17 10:09 ` Kalle Valo
2021-02-17 10:19 ` Kalle Valo
2021-02-24 10:44 ` Srinivasan Raju
2021-02-26 13:07 ` [PATCH] [v14] " Srinivasan Raju
2021-04-19 11:52 ` Srinivasan Raju
2021-08-10 13:02 ` Srinivasan Raju
2021-08-21 13:42 ` Kalle Valo
2021-08-18 14:13 ` [PATCH] [v15] " Srinivasan Raju
2021-09-20 13:05 ` Kalle Valo
[not found] ` <CWLP265MB3217BB5AA5F102629A3AD204E0A19@CWLP265MB3217.GBRP265.PROD.OUTLOOK.COM>
2021-09-21 12:30 ` [EXTERNAL] " Kalle Valo
2021-09-22 7:33 ` Johannes Berg
2021-09-24 13:27 ` [EXTERNAL] " Srinivasan Raju
2021-09-20 14:11 ` Kalle Valo
2021-09-24 11:11 ` Kalle Valo
2021-09-24 13:26 ` [PATCH] [v16] wireless: Initial driver submission for pureLiFi LiFi Station Srinivasan Raju
2021-09-24 13:40 ` Kalle Valo
2021-10-05 11:22 ` [PATCH] [v17] wireless: Initial driver submission for pureLiFi STA devices Srinivasan Raju
2021-10-05 11:26 ` Johannes Berg
2021-10-05 12:30 ` [PATCH] [v18 1/2] nl80211: Add LC placeholder band definition to enum nl80211_band Srinivasan Raju
2021-10-05 12:31 ` [PATCH] [v18 2/2] wireless: Initial driver submission for pureLiFi STA devices Srinivasan Raju
2021-10-05 22:09 ` Jeff Johnson
2021-10-06 10:04 ` [PATCH] [v19 " Srinivasan Raju
2021-10-11 6:16 ` Kalle Valo
2021-10-12 12:50 ` [PATCH 0/2] wireless: New Driver " Srinivasan Raju
2021-10-12 12:50 ` [PATCH 1/2] [v19 1/2] nl80211: Add LC placeholder band definition to enum nl80211_band Srinivasan Raju
2021-10-12 12:50 ` [PATCH 2/2] [v19 2/2] wireless: Initial driver submission for pureLiFi STA devices Srinivasan Raju
2021-10-14 6:03 ` kernel test robot
2021-10-24 17:58 ` kernel test robot
2021-10-18 10:00 ` [PATCH v20 0/2] wireless: New Driver " Srinivasan Raju
2021-10-18 10:00 ` [PATCH v20 1/2] nl80211: Add LC placeholder band definition to nl80211_band Srinivasan Raju
2021-10-18 10:00 ` [PATCH v20 2/2] wireless: Initial driver submission for pureLiFi STA devices Srinivasan Raju
2021-10-25 9:59 ` Kari Argillander
[not found] ` <CWLP265MB321780AB502EF147F6AAF197E0839@CWLP265MB3217.GBRP265.PROD.OUTLOOK.COM>
2021-10-25 12:17 ` [EXTERNAL] " Kalle Valo
2021-10-27 11:34 ` kernel test robot
2021-10-27 12:38 ` Kari Argillander
2021-10-28 7:24 ` Kalle Valo
2021-10-31 13:10 ` [PATCH v21 0/2] wireless: New Driver " Srinivasan Raju
2021-10-31 13:10 ` [PATCH 1/2] nl80211: Add LC placeholder band definition to nl80211_band Srinivasan Raju
2021-10-31 13:10 ` [PATCH 2/2] wireless: Initial driver submission for pureLiFi STA devices Srinivasan Raju
2021-12-20 19:13 ` Kalle Valo
2022-02-24 15:35 ` Kalle Valo
2022-02-24 18:20 ` [PATCH v22 0/2] wireless: New Driver " Srinivasan Raju
2022-02-24 18:20 ` [PATCH v22 1/2] nl80211: Add LC placeholder band definition to nl80211_band Srinivasan Raju
2022-02-25 9:52 ` Kalle Valo
2022-02-24 18:20 ` [PATCH v22 1/2] wireless: Initial driver submission for pureLiFi STA devices Srinivasan Raju
2022-04-25 13:06 ` Kalle Valo
[not found] ` <CWLP265MB32173F6188304F6B2CB90C79E0F89@CWLP265MB3217.GBRP265.PROD.OUTLOOK.COM>
2022-04-26 4:17 ` [EXTERNAL] " Kalle Valo
2022-04-27 4:55 ` Kalle Valo
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