最終更新:2016-03-09 (水) 13:54:05 (2964d)  

new_id
Top / new_id

Writing a device ID to this file will attempt to dynamically add a new device ID to a USB device driver.

メモ

  • From kernel version Linux 2.6.21 (2007), all USB drivers can be told to recognize an additional device without rebuilding.
↑

ドキュメント

↑

Adding new vendor and product IDs to an existing USB driver on Linux

↑

例 

  • modprobe foo_driver
echo 34ca d365 > /sys/bus/usb/drivers/foo_driver/new_id
↑

フォーマット 

  • idVendor idProduct bInterfaceClass RefIdVendor RefIdProduct
↑

メモ 

  • What:		/sys/bus/usb/drivers/.../new_id
Date:		October 2011
Contact:	linux-usb@vger.kernel.org
Description:
		Writing a device ID to this file will attempt to
		dynamically add a new device ID to a USB device driver.
		This may allow the driver to support more hardware than
		was included in the driver's static device ID support
		table at compile time. The format for the device ID is:
		idVendor idProduct bInterfaceClass RefIdVendor RefIdProduct
		The vendor ID and device ID fields are required, the
		rest is optional. The Ref* tuple can be used to tell the
		driver to use the same driver_data for the new device as
		it is used for the reference device.
		Upon successfully adding an ID, the driver will probe
		for the device and attempt to bind to it.  For example:
		# echo "8086 10f5" > /sys/bus/usb/drivers/foo/new_id

		Here add a new device (0458:7045) using driver_data from
		an already supported device (0458:704c):
		# echo "0458 7045 0 0458 704c" > /sys/bus/usb/drivers/foo/new_id

		Reading from this file will list all dynamically added
		device IDs in the same format, with one entry per
		line. For example:
		# cat /sys/bus/usb/drivers/foo/new_id
		8086 10f5
		dead beef 06
		f00d cafe

		The list will be truncated at PAGE_SIZE bytes due to
		sysfs restrictions.
↑

Linux/sys/bus/usb/drivers/.../new_id

  • Linux/sys/bus/usb-serial/drivers/hid-generic/new_id?
↑

Linux/sys/bus/hid/drivers/.../new_id

↑

udevで使う場合

  • Create /etc/udev/rules.d/95-foo.rules containing the following: 
    # Rules for hotplugging Yoyodyne USB frobitzers
SUBSYSTEM=="usb", ATTR{idVendor}=="34ca", ATTR{idProduct}=="d365", RUN="/etc/yoyodyne_foo.sh"
# You may need lines like these to create devices with correct groups
# and permissions, and set up symlinks:
# KERNEL=="ttyUSB0", SYMLINK="modem", GROUP="dialout", MODE="0660"
# KERNEL=="ttyUSB1", GROUP="dialout" MODE="0660"
  • and /etc/yoyodyne_foo.sh as follows: 
    #!/bin/sh
modprobe foo_driver
echo 34ca d365 > /sys/bus/usb/drivers/foo_driver/new_id



検索：