Create the patch for the linux kernel module #dunfell

Create the patch for the linux kernel module #dunfell

[mahendrasondagar08]

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Hi... Community

Hope all are doing well

I'm dealing with the yocto dunfell branch with the STM32MP1

I know, how to create the patch for the device tree source (DTS) and add with the custom image

My intend is to modify the busb.c to work with my bluetooth USB dongle
I have create the patch for the same and adding the same way as i does with the DTS file

But, unfortunately, it's causing the issue wile baking the image!

Can any one redirect me to the tutorial to customize the kernel module via patch under yocto ?

All suggestions and comments welcome

Thanks
Mahendra

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Re: [yocto] Create the patch for the linux kernel module #dunfell

[Khem Raj]

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On Sat, Aug 20, 2022 at 11:52 AM <mahendrasondagar08@gmail.com> wrote:

> Hi... Community
>
> Hope all are doing well
>
> I'm dealing with the yocto dunfell branch with the STM32MP1
>
> I know, how to create the patch for the device tree source (DTS) and add
> with the custom image
>
> My intend is to modify the busb.c to work with my bluetooth USB dongle
> I have create the patch for the same and adding the same way as i does
> with the DTS file
>
> But, unfortunately, it's causing the issue wile baking the image!
>

If it’s in-tree kernel module then you create a patch with your changes and
apply it via recipe like any other recipe is going to do in metadata

However you need to share specific details on errors so someone can get a
better content to help you

>
> Can any one redirect me to the tutorial to customize the kernel module via
> patch under yocto ?
>
>
>
> All suggestions and comments welcome
>
> Thanks
> Mahendra
>
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Re: Create the patch for the linux kernel module #dunfell

[mahendrasondagar08]

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Hi... Khem Raj

First of all, Thanks for the swift reply.
Let me brief the case.

Actually, I'm dealing with the TP-Link Bluetooth dongle
I have been enabled it's suitable drivers
However, the things not working well

After some googling, i got to know that to work with the TP-Link Bluetooth dongle, I'll have to apply the patch by making some changes at the busb.c and hci_ldisc.c files
And that's how, I have created it's patches by *git diff --no-index* command *

* FYI: I have meta-custom layer, in which i have created the recpies-kernel/linux/stm32mp1 directory
I have stored, all 2 patches in to the stm32mp1 files

in linux file, i have created the .bbappend file called *linux-stm32mp_%.bbappend*
For the instance, i have added the all to patches path in to the .bbappend file at *SRC_URI*

Now, My problem is,  during the baking of the custom image I'm getting the following errors
*"can't find file to patch at input line 5"*

*Error logs*

For your reference, i have attached the contents of the .bbappend file and patch here

In above .bbappend file, the last two patches are for this modules which i need to modify

Once of the patch contents are mentioned at here

I have also attached both of these patches here

I guess, there might be some issue with the actual source file location mentioned in to the patches
but, I'm not sure

Pl. suggest me the right solution

Thanks
Mahendra

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// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/*
 * Copyright (C) STMicroelectronics 2019 - All Rights Reserved
 * Author: Alexandre Torgue <alexandre.torgue@st.com> for STMicroelectronics.
 */

/dts-v1/;

#include "stm32mp157.dtsi"
#include "stm32mp15xa.dtsi"
#include "stm32mp15-pinctrl.dtsi"
#include "stm32mp15xxac-pinctrl.dtsi"
#include "stm32mp15xx-dkx.dtsi"

/ {
	model = "STMicroelectronics STM32MP157A-DK1 Discovery Board";
	compatible = "st,stm32mp157a-dk1", "st,stm32mp157";

	chosen {
		stdout-path = "serial0:115200n8";
	};
};

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[-- Attachment #3: 0003-stm32mp157a-dk1-hci_ldisc-fix.patch --]
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diff --git a/hci_ldisc.c.orig b/hci_ldisc.c
index 637c5b8..49d735d 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -801,8 +801,8 @@ static int hci_uart_tty_ioctl(struct tty_struct *tty, struct file *file,
  * We don't provide read/write/poll interface for user space.
  */
 static ssize_t hci_uart_tty_read(struct tty_struct *tty, struct file *file,
-				 unsigned char *buf, size_t nr,
-				 void **cookie, unsigned long offset)
+                 unsigned char __user *buf, size_t nr,
+                 void **cookie, unsigned long offset)
 {
 	return 0;
 }

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[-- Attachment #4: 0002-stm32mp157a-dk1-btusb-fix.patch --]
[-- Type: text/x-patch; name="0002-stm32mp157a-dk1-btusb-fix.patch", Size: 605 bytes --]

diff --git a/btusb.c.orig b/btusb.c
index afd2b1f..ecf0163 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -341,7 +341,9 @@ static const struct usb_device_id blacklist_table[] = {
 
 	/* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
 	{ USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
-
+        
+        /* Tp-Link UB500 Device*/
+        { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK },
 	/* Digianswer devices */
 	{ USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 	{ USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },

Re: [yocto] Create the patch for the linux kernel module #dunfell

[Quentin Schulz]

Hi Mahendra,

On August 22, 2022 7:04:46 PM GMT+02:00, mahendrasondagar08@gmail.com wrote:
>Hi... Khem Raj
>
>First of all, Thanks for the swift reply.
>Let me brief the case.
>
>Actually, I'm dealing with the TP-Link Bluetooth dongle
>I have been enabled it's suitable drivers
>However, the things not working well
>
>After some googling, i got to know that to work with the TP-Link Bluetooth dongle, I'll have to apply the patch by making some changes at the busb.c and hci_ldisc.c files
>And that's how, I have created it's patches by *git diff --no-index* command *
>
>* FYI: I have meta-custom layer, in which i have created the recpies-kernel/linux/stm32mp1 directory
>I have stored, all 2 patches in to the stm32mp1 files
>
>in linux file, i have created the .bbappend file called *linux-stm32mp_%.bbappend*
>For the instance, i have added the all to patches path in to the .bbappend file at *SRC_URI*
>
>Now, My problem is,  during the baking of the custom image I'm getting the following errors
>*"can't find file to patch at input line 5"*
>
>*Error logs*
>
>For your reference, i have attached the contents of the .bbappend file and patch here
>
>In above .bbappend file, the last two patches are for this modules which i need to modify
>
>Once of the patch contents are mentioned at here
>
>I have also attached both of these patches here
>
>I guess, there might be some issue with the actual source file location mentioned in to the patches
>but, I'm not sure
>

The issue is that the path in your patch is incorrect, it should not have kernel-source/ in it, just remove it.

Cheers,
Quentin


>Pl. suggest me the right solution
>
>Thanks
>Mahendra

Re: [yocto] Create the patch for the linux kernel module #dunfell

[Mahendra Sondagar]

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Hi...Quentin

Thanks for the revert :)
Let me try this

Regards
Mahendra

On Mon, Aug 22, 2022 at 10:49 PM Quentin Schulz <foss+yocto@0leil.net>
wrote:

> Hi Mahendra,
>
> On August 22, 2022 7:04:46 PM GMT+02:00, mahendrasondagar08@gmail.com
> wrote:
> >Hi... Khem Raj
> >
> >First of all, Thanks for the swift reply.
> >Let me brief the case.
> >
> >Actually, I'm dealing with the TP-Link Bluetooth dongle
> >I have been enabled it's suitable drivers
> >However, the things not working well
> >
> >After some googling, i got to know that to work with the TP-Link
> Bluetooth dongle, I'll have to apply the patch by making some changes at
> the busb.c and hci_ldisc.c files
> >And that's how, I have created it's patches by *git diff --no-index*
> command *
> >
> >* FYI: I have meta-custom layer, in which i have created the
> recpies-kernel/linux/stm32mp1 directory
> >I have stored, all 2 patches in to the stm32mp1 files
> >
> >in linux file, i have created the .bbappend file called
> *linux-stm32mp_%.bbappend*
> >For the instance, i have added the all to patches path in to the
> .bbappend file at *SRC_URI*
> >
> >Now, My problem is,  during the baking of the custom image I'm getting
> the following errors
> >*"can't find file to patch at input line 5"*
> >
> >*Error logs*
> >
> >For your reference, i have attached the contents of the .bbappend file
> and patch here
> >
> >In above .bbappend file, the last two patches are for this modules which
> i need to modify
> >
> >Once of the patch contents are mentioned at here
> >
> >I have also attached both of these patches here
> >
> >I guess, there might be some issue with the actual source file location
> mentioned in to the patches
> >but, I'm not sure
> >
>
> The issue is that the path in your patch is incorrect, it should not have
> kernel-source/ in it, just remove it.
>
> Cheers,
> Quentin
>
>
> >Pl. suggest me the right solution
> >
> >Thanks
> >Mahendra
>

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Re: [yocto] Create the patch for the linux kernel module #dunfell

[Mahendra Sondagar]

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Hi... Quentin
Yes, it works!

I'm able to customise the kernel module by the patch


Many thanks :)

Regards,
Mahendra

On Mon, Aug 22, 2022 at 11:09 PM Mahendra Sondagar <
mahendrasondagar08@gmail.com> wrote:

> Hi...Quentin
>
> Thanks for the revert :)
> Let me try this
>
> Regards
> Mahendra
>
> On Mon, Aug 22, 2022 at 10:49 PM Quentin Schulz <foss+yocto@0leil.net>
> wrote:
>
>> Hi Mahendra,
>>
>> On August 22, 2022 7:04:46 PM GMT+02:00, mahendrasondagar08@gmail.com
>> wrote:
>> >Hi... Khem Raj
>> >
>> >First of all, Thanks for the swift reply.
>> >Let me brief the case.
>> >
>> >Actually, I'm dealing with the TP-Link Bluetooth dongle
>> >I have been enabled it's suitable drivers
>> >However, the things not working well
>> >
>> >After some googling, i got to know that to work with the TP-Link
>> Bluetooth dongle, I'll have to apply the patch by making some changes at
>> the busb.c and hci_ldisc.c files
>> >And that's how, I have created it's patches by *git diff --no-index*
>> command *
>> >
>> >* FYI: I have meta-custom layer, in which i have created the
>> recpies-kernel/linux/stm32mp1 directory
>> >I have stored, all 2 patches in to the stm32mp1 files
>> >
>> >in linux file, i have created the .bbappend file called
>> *linux-stm32mp_%.bbappend*
>> >For the instance, i have added the all to patches path in to the
>> .bbappend file at *SRC_URI*
>> >
>> >Now, My problem is,  during the baking of the custom image I'm getting
>> the following errors
>> >*"can't find file to patch at input line 5"*
>> >
>> >*Error logs*
>> >
>> >For your reference, i have attached the contents of the .bbappend file
>> and patch here
>> >
>> >In above .bbappend file, the last two patches are for this modules which
>> i need to modify
>> >
>> >Once of the patch contents are mentioned at here
>> >
>> >I have also attached both of these patches here
>> >
>> >I guess, there might be some issue with the actual source file location
>> mentioned in to the patches
>> >but, I'm not sure
>> >
>>
>> The issue is that the path in your patch is incorrect, it should not have
>> kernel-source/ in it, just remove it.
>>
>> Cheers,
>> Quentin
>>
>>
>> >Pl. suggest me the right solution
>> >
>> >Thanks
>> >Mahendra
>>
>

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