Re: [yocto] Enabling SD Card Detection for USB SD Card Reader

[Khem Raj]

On Fri, May 4, 2018 at 4:33 AM, Tom Gibson  wrote:
> Hi,
>
>
>
> We would like to enable our Yocto distribution to auto-detect when an SD
> card is inserted in a USB SD card reader, in much the same way as a card is
> detected on desktop linux such as Ubuntu. We have got our USB card reader
> working with the generic-storage driver, but at the moment we have to do
> something like ‘fdisk -l’ to refresh the attached storage after a card is
> inserted or removed in order for it to it to be listed in /dev. The card
> reader shows up as /dev/sda regardless of whether there is a card present or
> not, but the partition on the card only shows up as /dev/sda1 after forcing
> the refresh.
>
>
>
> Any pointers towards which service we need to install to enable this
> functionality appreciated!
>

perhaps you should be able to use udisks2
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[yocto] Enabling SD Card Detection for USB SD Card Reader

[Tom Gibson]

Hi,

We would like to enable our Yocto distribution to auto-detect when an SD card 
is inserted in a USB SD card reader, in much the same way as a card is detected 
on desktop linux such as Ubuntu. We have got our USB card reader working with 
the generic-storage driver, but at the moment we have to do something like 
'fdisk -l' to refresh the attached storage after a card is inserted or removed 
in order for it to it to be listed in /dev. The card reader shows up as 
/dev/sda regardless of whether there is a card present or not, but the 
partition on the card only shows up as /dev/sda1 after forcing the refresh.

Any pointers towards which service we need to install to enable this 
functionality appreciated!

Regards,

Tom Gibson
C Software Limited

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