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tools/lib/: added mechanism to remove USB restrictions (enabling multiple sessions)

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- usbopen.h (usb_unrestrict), usbusb.c (usb_unrestrict): drop ID and
  path restrictions
- atusb.c (atusb_open): call usb_unrestrict to remove restrictions
This commit is contained in:
Werner Almesberger 2011-04-10 10:55:49 -03:00
parent 4b07e5c894
commit 4190aded8c
3 changed files with 10 additions and 0 deletions
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1
tools/lib/atusb.c
View File

@ -54,6 +54,7 @@ static void *atusb_open(const char *arg)
{
usb_dev_handle *dev;
usb_unrestrict();
if (arg)
restrict_usb_path(arg);
dev = open_usb(USB_VENDOR, USB_PRODUCT);

8
tools/lib/usbopen.c
View File

@ -228,3 +228,11 @@ void restrict_usb_path(const char *path)
else
restrict_usb_by_port(path);
}
void usb_unrestrict(void)
{
vendor = 0;
product = 0;
restricted_path = NULL;
}

1
tools/lib/usbopen.h
View File

@ -21,5 +21,6 @@
usb_dev_handle *open_usb(uint16_t default_vendor, uint16_t default_product);
void parse_usb_id(const char *id);
void restrict_usb_path(const char *path);
void usb_unrestrict(void);
#endif /* !USB_OPEN_H */