Hello,
I am trying to have devlink report default information at the core
level. One of the attributes reported by devlink is the serial number
which is available in usb_device::serial (details: [1]).
This code would work:
if (!strcmp(dev->parent->type->name, "usb_device")) {
/* is indeed an USB device */
but the string comparison looks odd.
There is a is_usb_device() which does the check:
https://elixir.bootlin.com/linux/v6.1-rc1/source/drivers/usb/core/usb.h#L152
but this function is only visible at the USB core level.
Thus my questions:
* what is the correct way (outside of USB core) to check if a device
is an USB device? Is the string comparaison OK or is there a smarter
way?
* would it make sense to export the is_usb_device() function?
[1] https://lore.kernel.org/netdev/20221122154934.13937-1-mailhol.vincent@xxxxxxxxxx/
Thank you for your help,
Yours sincerely,
Vincent Mailhol
