* usb: read interface string descriptor(iInterface) from linux service
@ 2024-02-14 14:34 Muni Sekhar
2024-02-14 15:22 ` Greg KH
0 siblings, 1 reply; 2+ messages in thread
From: Muni Sekhar @ 2024-02-14 14:34 UTC (permalink / raw)
To: linux-usb
HI all,
USB devices can have multiple interfaces (functional units) that serve
different purposes (e.g., data transfer, control, audio, etc.).
Each interface can have an associated string descriptor (referred to
as iInterface). The string descriptor provides a human-readable name
or description for the interface.
From user space service utility, How to scan all the USB devices
connected to the system and read each interface string
descriptor(iInterface) and check whether it matches "Particular
String" or not.
The service program should trigger scanning all the USB devices on any
USB device detection or removal. Can libusb be used for it?
Any input would be appreciated.
--
Thanks,
Sekhar
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: usb: read interface string descriptor(iInterface) from linux service
2024-02-14 14:34 usb: read interface string descriptor(iInterface) from linux service Muni Sekhar
@ 2024-02-14 15:22 ` Greg KH
0 siblings, 0 replies; 2+ messages in thread
From: Greg KH @ 2024-02-14 15:22 UTC (permalink / raw)
To: Muni Sekhar; +Cc: linux-usb
On Wed, Feb 14, 2024 at 08:04:46PM +0530, Muni Sekhar wrote:
> HI all,
>
> USB devices can have multiple interfaces (functional units) that serve
> different purposes (e.g., data transfer, control, audio, etc.).
>
> Each interface can have an associated string descriptor (referred to
> as iInterface). The string descriptor provides a human-readable name
> or description for the interface.
>
> >From user space service utility, How to scan all the USB devices
> connected to the system and read each interface string
> descriptor(iInterface) and check whether it matches "Particular
> String" or not.
>
> The service program should trigger scanning all the USB devices on any
> USB device detection or removal. Can libusb be used for it?
>
> Any input would be appreciated.
You asked this already on the systemd mailing list, why the duplicate
here?
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