From: apawar.linux@gmail.com (Abhijit Pawar)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Get USB Device Class Type and Mount point
Date: Thu, 9 Feb 2012 11:40:16 +0530 [thread overview]
Message-ID: <CAJQzqVzR3AaLwWAnEv3ADk-kEN3ejZQGzd2JGpwwmkAS0L2p5w@mail.gmail.com> (raw)
Hi ,
Is there any way we can get the class type of the attached USB device
through struct usb_device in a kernel module?
I tried getting the device descriptor and interface descriptor and then use
them to get the Device and Interface Class and Subclass.
struct usb_device_descriptor *descriptor = &usbDev->descriptor;
struct usb_interface_descriptor *idesc = to_usb_interface(usbDev);
Whenever I run my kernel module, I get 0 for DeviceClass and Interface
Class. I checked the meaning and it says its the information and to be
gathered through interface.
Am I missing something here? What I want is to get the mount point / device
path of the USB devices. Like for Storage Device I would like to get its
mount path and for HID I would like to get its device path.
Regards,
Abhijit Pawar
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next reply other threads:[~2012-02-09 6:10 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-09 6:10 Abhijit Pawar [this message]
2012-02-09 6:22 ` Get USB Device Class Type and Mount point Abhijit Pawar
2012-02-09 12:23 ` Greg KH
2012-02-09 13:48 ` Abhijit Pawar
2012-02-09 14:47 ` Greg KH
2012-02-10 13:49 ` Abhijit Pawar
2012-02-10 14:12 ` Greg KH
2012-02-13 12:14 ` Abhijit Pawar
2012-02-13 12:21 ` Mandeep Sandhu
2012-02-13 12:31 ` Abhijit Pawar
2012-02-13 15:02 ` Greg KH
2012-02-14 11:38 ` Abhijit Pawar
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