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Posted to dev@nuttx.apache.org by Flavio Castro Alves Filho <fl...@gmail.com> on 2021/04/28 12:03:27 UTC
Replacing SmartFS to LittleFS
Hello,
Today my application uses SmartFS associated with MX25L SPI Dataflash.
I intend to replace the SmartFS to LittleFS.
In the filesystem section of menuconfig, I can disable
CONFIG_FS_SMARTFS and enable CONFIG_FS_SMARTFS.
But when I go to "Device Drivers" --> "Memory Technology Device (MTD)
Support", there is an option CONFIG_MTD_SMART.
Is there any equivalent configuration for LittleFS?
After enabling the LittleFS, is there anything that must be done at
the board code to enable it?
Best Regards,
Flavio
--
Flavio de Castro Alves Filho
flavio.alves@gmail.com
Twitter: http://twitter.com/#!/fraviofii
LinkedIn profile: www.linkedin.com/in/flaviocastroalves
Re: Replacing SmartFS to LittleFS
Posted by Flavio Castro Alves Filho <fl...@gmail.com>.
Hello Xiang,
> >
> Yes, if you just want to create an empty littlefs partition, littlefs
> driver can do it without the userspace tool assistance.
> Either run the mount command from nsh:
> mount -t littlefs -o autoformat /dev/mtd /mnt
> Or call mount function from board_initialize like this:
> mount("/dev/mtd", "/mnt", "littlefs", 0, "autoformat");
>
I believe that is enough for me.
Thank you very much.
Best regards,
Flavio
--
Flavio de Castro Alves Filho
flavio.alves@gmail.com
Twitter: http://twitter.com/#!/fraviofii
LinkedIn profile: www.linkedin.com/in/flaviocastroalves
Re: Replacing SmartFS to LittleFS
Posted by Xiang Xiao <xi...@gmail.com>.
On Thu, Apr 29, 2021 at 8:12 AM Flavio Castro Alves Filho <
flavio.alves@gmail.com> wrote:
> Hello Xiang,
>
> Thank you for your quick response.
>
> How do I manage the format of a littlefs 'disk' from programming (not
> nutshell) ?
>
>
If you want to generate the initial littlefs image in host environment like
genromfs, you can try this tool:
https://github.com/earlephilhower/mklittlefs
> I am looking for something similar to 'mksmatfs' function.
>
> Or only the flash_eraseall function is enough? Or should I add the "-o
> autoformat" option on the last parameter of the mount() function?
>
>
Yes, if you just want to create an empty littlefs partition, littlefs
driver can do it without the userspace tool assistance.
Either run the mount command from nsh:
mount -t littlefs -o autoformat /dev/mtd /mnt
Or call mount function from board_initialize like this:
mount("/dev/mtd", "/mnt", "littlefs", 0, "autoformat");
> Best regards,
>
> Flavio
>
>
> Em qua., 28 de abr. de 2021 às 09:33, Xiang Xiao
> <xi...@gmail.com> escreveu:
> >
> > LittleFS can talk directly with the standard MTD driver, so you just
> need:
> >
> > 1. Call register_mtddriver in your board file
> > 2. Run mount from nsh like this:
> >
> > mount -t littlefs -o autoformat /dev/mtd /mnt
> >
> >
> > On Wed, Apr 28, 2021 at 8:03 PM Flavio Castro Alves Filho <
> > flavio.alves@gmail.com> wrote:
> >
> > > Hello,
> > >
> > > Today my application uses SmartFS associated with MX25L SPI Dataflash.
> > >
> > > I intend to replace the SmartFS to LittleFS.
> > >
> > > In the filesystem section of menuconfig, I can disable
> > > CONFIG_FS_SMARTFS and enable CONFIG_FS_SMARTFS.
> > >
> > > But when I go to "Device Drivers" --> "Memory Technology Device (MTD)
> > > Support", there is an option CONFIG_MTD_SMART.
> > >
> > > Is there any equivalent configuration for LittleFS?
> > >
> > > After enabling the LittleFS, is there anything that must be done at
> > > the board code to enable it?
> > >
> > > Best Regards,
> > >
> > > Flavio
> > >
> > >
> > > --
> > > Flavio de Castro Alves Filho
> > >
> > > flavio.alves@gmail.com
> > > Twitter: http://twitter.com/#!/fraviofii
> > > LinkedIn profile: www.linkedin.com/in/flaviocastroalves
> > >
>
>
>
> --
> Flavio de Castro Alves Filho
>
> flavio.alves@gmail.com
> Twitter: http://twitter.com/#!/fraviofii
> LinkedIn profile: www.linkedin.com/in/flaviocastroalves
>
Re: Replacing SmartFS to LittleFS
Posted by Flavio Castro Alves Filho <fl...@gmail.com>.
Hello Xiang,
Thank you for your quick response.
How do I manage the format of a littlefs 'disk' from programming (not
nutshell) ?
I am looking for something similar to 'mksmatfs' function.
Or only the flash_eraseall function is enough? Or should I add the "-o
autoformat" option on the last parameter of the mount() function?
Best regards,
Flavio
Em qua., 28 de abr. de 2021 às 09:33, Xiang Xiao
<xi...@gmail.com> escreveu:
>
> LittleFS can talk directly with the standard MTD driver, so you just need:
>
> 1. Call register_mtddriver in your board file
> 2. Run mount from nsh like this:
>
> mount -t littlefs -o autoformat /dev/mtd /mnt
>
>
> On Wed, Apr 28, 2021 at 8:03 PM Flavio Castro Alves Filho <
> flavio.alves@gmail.com> wrote:
>
> > Hello,
> >
> > Today my application uses SmartFS associated with MX25L SPI Dataflash.
> >
> > I intend to replace the SmartFS to LittleFS.
> >
> > In the filesystem section of menuconfig, I can disable
> > CONFIG_FS_SMARTFS and enable CONFIG_FS_SMARTFS.
> >
> > But when I go to "Device Drivers" --> "Memory Technology Device (MTD)
> > Support", there is an option CONFIG_MTD_SMART.
> >
> > Is there any equivalent configuration for LittleFS?
> >
> > After enabling the LittleFS, is there anything that must be done at
> > the board code to enable it?
> >
> > Best Regards,
> >
> > Flavio
> >
> >
> > --
> > Flavio de Castro Alves Filho
> >
> > flavio.alves@gmail.com
> > Twitter: http://twitter.com/#!/fraviofii
> > LinkedIn profile: www.linkedin.com/in/flaviocastroalves
> >
--
Flavio de Castro Alves Filho
flavio.alves@gmail.com
Twitter: http://twitter.com/#!/fraviofii
LinkedIn profile: www.linkedin.com/in/flaviocastroalves
Re: Replacing SmartFS to LittleFS
Posted by Xiang Xiao <xi...@gmail.com>.
LittleFS can talk directly with the standard MTD driver, so you just need:
1. Call register_mtddriver in your board file
2. Run mount from nsh like this:
mount -t littlefs -o autoformat /dev/mtd /mnt
On Wed, Apr 28, 2021 at 8:03 PM Flavio Castro Alves Filho <
flavio.alves@gmail.com> wrote:
> Hello,
>
> Today my application uses SmartFS associated with MX25L SPI Dataflash.
>
> I intend to replace the SmartFS to LittleFS.
>
> In the filesystem section of menuconfig, I can disable
> CONFIG_FS_SMARTFS and enable CONFIG_FS_SMARTFS.
>
> But when I go to "Device Drivers" --> "Memory Technology Device (MTD)
> Support", there is an option CONFIG_MTD_SMART.
>
> Is there any equivalent configuration for LittleFS?
>
> After enabling the LittleFS, is there anything that must be done at
> the board code to enable it?
>
> Best Regards,
>
> Flavio
>
>
> --
> Flavio de Castro Alves Filho
>
> flavio.alves@gmail.com
> Twitter: http://twitter.com/#!/fraviofii
> LinkedIn profile: www.linkedin.com/in/flaviocastroalves
>