From mboxrd@z Thu Jan 1 00:00:00 1970 From: apawar.linux@gmail.com (Abhijit Pawar) Date: Thu, 9 Feb 2012 11:52:00 +0530 Subject: Get USB Device Class Type and Mount point In-Reply-To: References: Message-ID: To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org oops. I tried getting interface descriptor from usb interface which is wrong. However still I am not able to get the class type from device descriptor. Regards, Abhijit Pawar On 9 February 2012 11:40, Abhijit Pawar wrote: > 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20120209/10f9510d/attachment.html