check_ctrlrecip() disallows any control transfers if the device is
deconfigured (in configuration 0, ie. state ADDRESS). This for example
makes it impossible to read the device descriptors without configuring the
device, although most standard device requests are allowed in this state by
the spec. This patch allows control transfers for the ADDRESS state, too.
Signed-off-by: Horst Schirmeier <[EMAIL PROTECTED]>
Cc: Alan Stern <[EMAIL PROTECTED]>
Cc: David Brownell <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
drivers/usb/core/devio.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
24f8b116c45e46779dec553f934c3d74f79c06fb
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index de6a7c0..545da37 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -493,7 +493,8 @@ static int check_ctrlrecip(struct dev_st
{
int ret = 0;
- if (ps->dev->state != USB_STATE_CONFIGURED)
+ if (ps->dev->state != USB_STATE_ADDRESS
+ && ps->dev->state != USB_STATE_CONFIGURED)
return -EHOSTUNREACH;
if (USB_TYPE_VENDOR == (USB_TYPE_MASK & requesttype))
return 0;
--
1.2.4
-------------------------------------------------------
This SF.Net email is sponsored by xPML, a groundbreaking scripting language
that extends applications into web and mobile media. Attend the live webcast
and join the prime developer group breaking into this new coding territory!
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642
_______________________________________________
linux-usb-devel@lists.sourceforge.net
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
