diff options
author | Peter Chen <peter.chen@freescale.com> | 2011-12-09 14:17:24 +0800 |
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committer | Nitin Garg <nitin.garg@freescale.com> | 2014-06-03 21:47:00 -0500 |
commit | 3c5ec7129b01562f60f48056bed173948c721938 (patch) | |
tree | 3cd4c0428efaba6a67f7539a75576edcf2f20733 /Documentation | |
parent | 01b859de8dcf0194ee2088153e715bc342538c39 (diff) |
ENGR00169885-2 usb-udc: Add Doc for udc
Add remote wakeup test method to udc doc
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/arm/imx/udc.txt | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Documentation/arm/imx/udc.txt b/Documentation/arm/imx/udc.txt new file mode 100644 index 000000000000..fdbaa848983b --- /dev/null +++ b/Documentation/arm/imx/udc.txt @@ -0,0 +1,16 @@ +How to test remote wakeup (Make sure connecting to usb host and gadget is loaded) +1. Prepare a usb host which featured with remote wakeup +alternatively, You can use another i.mx board (like mx50 rdp, or mx6q) +2. Boot up both boards, and connect two boards with usb cable +3. At device side, do below commands: +- modprobe g_file_storage file=/dev/mmcblk0p1 (other gadgets are also ok) +- echo 1 > /sys/devices/platform/fsl-usb2-udc/gadget/remote_wakeup +4. At host side, do below command: +- echo enabled > /sys/devices/platform/fsl-ehci.1/power/wakeup +- echo standby > /sys/power/state +5. Send Remote wakeup to wake up host +At device side, do below command: +echo 1 > /sys/devices/platform/fsl-usb2-udc/gadget/start_remote_wakeup +6. The expected behaviour is: host is waked up, and there is +not re-enumeration happens. + |