usb: gadget: printer: add configfs support

Add support for configfs interface so that f_printer can be used as a
component of usb gadgets composed with it.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/configfs-usb-gadget-printer b/Documentation/ABI/testing/configfs-usb-gadget-printer
new file mode 100644
index 000000000000..6b0714e3c605
--- /dev/null
+++ b/Documentation/ABI/testing/configfs-usb-gadget-printer
@@ -0,0 +1,9 @@
+What:           /config/usb-gadget/gadget/functions/printer.name
+Date:           Apr 2015
+KernelVersion:  4.1
+Description:
+                The attributes:
+
+                pnp_string      - Data to be passed to the host in pnp string
+                q_len           - Number of requests per endpoint
+