On Mon, 12 Aug 2013 gregkh@xxxxxxxxxxxxxxxxxxx wrote: > This is a note to let you know that I've just added the patch titled > > usb: ehci: Add support for SINGLE_STEP_SET_FEATURE test of EHSET > > to my usb git tree which can be found at > git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git > in the usb-next branch. > > The patch will show up in the next release of the linux-next tree > (usually sometime within the next 24 hours during the week.) > > The patch will also be merged in the next major kernel release > during the merge window. > > If you have any questions about this process, please let me know. > > > From 9841f37a1cca5357c1fd198b1068c12955aa632f Mon Sep 17 00:00:00 2001 > From: Manu Gautam <mgautam@xxxxxxxxxxxxxx> > Date: Thu, 8 Aug 2013 16:49:24 -0700 > Subject: usb: ehci: Add support for SINGLE_STEP_SET_FEATURE test of EHSET > > The USB Embedded High-speed Host Electrical Test (EHSET) defines the > SINGLE_STEP_SET_FEATURE test as follows: > > 1) The host enumerates the test device with VID:0x1A0A, PID:0x0108 > 2) The host sends the SETUP stage of a GetDescriptor(Device) > 3) The device ACKs the request > 4) The host issues SOFs for 15 seconds allowing the test operator to > raise the scope trigger just above the SOF voltage level > 5) The host sends the IN packet > 6) The device sends data in response, triggering the scope > 7) The host sends an ACK in response to the data > > This patch adds additional handling to the EHCI hub driver and allows > the EHSET driver to initiate this test mode by issuing a a SetFeature > request to the root hub with a Test Selector value of 0x06. From there > it mimics ehci_urb_enqueue() but separately submits QTDs for the > SETUP and DATA/STATUS stages in order to insert a delay in between. > > Signed-off-by: Manu Gautam <mgautam@xxxxxxxxxxxxxx> > Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> > [jackp@xxxxxxxxxxxxxx: imported from commit c2084930 on codeaurora.org; > minor cleanup and updated author email] > Signed-off-by: Jack Pham <jackp@xxxxxxxxxxxxxx> > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Okay, I was a little too late and Greg has merged the patch. Jack or Manu, can you write a follow-on patch that adds a Kconfig option to enable test modes in the HCDs, and then avoids compiling the new code added to ehci-hcd if the config option is disabled? Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
