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USB: add read support to usb-serial/../new_id

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Keep the usb-serial support for dynamic IDs in sync with the usb
support.  This enables readout of dynamic device IDs for
usb-serial drivers.  Common code is exported from the usb core
system and reused by the usb-serial bus driver.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bjørn Mork
2012-05-13 12:35:00 +02:00
committed by Greg Kroah-Hartman
parent e6bbcef021
commit ef206f3f01
3 changed files with 20 additions and 4 deletions
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2
include/linux/usb.h
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@@ -790,6 +790,8 @@ extern ssize_t usb_store_new_id(struct usb_dynids *dynids,
struct device_driver *driver,
const char *buf, size_t count);
extern ssize_t usb_show_dynids(struct usb_dynids *dynids, char *buf);
/**
* struct usbdrv_wrap - wrapper for driver-model structure
* @driver: The driver-model core driver structure.