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-rw-r--r--Documentation/usb/gadget_serial.txt8
1 files changed, 6 insertions, 2 deletions
diff --git a/Documentation/usb/gadget_serial.txt b/Documentation/usb/gadget_serial.txt
index 61e67f6a20a0..6b4a88a8c8e3 100644
--- a/Documentation/usb/gadget_serial.txt
+++ b/Documentation/usb/gadget_serial.txt
@@ -236,8 +236,12 @@ I: If#= 0 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=serial
236E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms 236E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
237E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms 237E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
238 238
239You must explicitly load the usbserial driver with parameters to 239You must load the usbserial driver and explicitly set its parameters
240configure it to recognize the gadget serial device, like this: 240to configure it to recognize the gadget serial device, like this:
241
242 echo 0x0525 0xA4A6 >/sys/bus/usb-serial/drivers/generic/new_id
243
244The legacy way is to use module parameters:
241 245
242 modprobe usbserial vendor=0x0525 product=0xA4A6 246 modprobe usbserial vendor=0x0525 product=0xA4A6
243 247