On Thu, Mar 07, 2019 at 03:24:29PM +0100, rchmielarz wrote: > Hi, > > I'm trying to certify USB on our device that is running Linux 4.14. > For windows systems we were using https://www.usb.org/usb2tools. For > linux the only option I have found is a kernel module called EHSET. > Unfortunately I can't manage to get it working, can You please help? > > I have added the following configuration: > CONFIG_USB_HCD_TEST_MODE=y > USB_EHSET_TEST_FIXTURE=m > > Then on the system I type in modprobe ehset. After this looking at the > source code of ehset.c I assumed that inserting USB stick with > VendorID: 0x1a0a and ProductID: 0x0104 would start the Packet command, > but it doesn't do anything (not output visible on the oscilloscope). > The device is loaded as a regular USB stick. > > The output I see is: > [ 1059.904034] ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1 > [ 1059.935515] ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00 > [ 1059.941700] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 > [ 1059.948523] usb usb1: New USB device strings: Mfr=3, Product=2, > SerialNumber=1 > [ 1059.955776] usb usb1: Product: EHCI Host Controller > [ 1059.960680] usb usb1: Manufacturer: Linux 4.14.87-rt50 ehci_hcd > [ 1059.966627] usb usb1: SerialNumber: ci_hdrc.0 > [ 1059.974486] usb usb1: usb_probe_device > [ 1059.982387] hub 1-0:1.0: usb_probe_interface > [ 1059.986735] hub 1-0:1.0: USB hub found > [ 1059.990614] hub 1-0:1.0: 1 port detected > [ 1060.475521] usb 1-1: new high-speed USB device number 2 using ci_hdrc > [ 1060.677970] usb 1-1: New USB device found, idVendor=1a0a, idProduct=0104 > [ 1060.684709] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 > [ 1060.691877] usb 1-1: Product: USB DISK 3.0 > [ 1060.696005] usb 1-1: Manufacturer: > [ 1060.700215] usb 1-1: SerialNumber: 190073AE389B2300 > [ 1060.708279] usb 1-1: usb_probe_device > [ 1060.716351] usb-storage 1-1:1.0: usb_probe_interface > [ 1060.724692] usb-storage 1-1:1.0: USB Mass Storage device detected > [ 1060.745330] scsi host1: usb-storage 1-1:1.0 The usb-storage driver bound to your device first. Try building a kernel without that driver and then it shoudl bind to the other driver. Or manually bind the ehset driver to your device through sysfs. Read up on the documentation for the "new_id" and "bind" and "unbind" sysfs files for how to do that. thanks, greg k-h
