dany/u-boot-megous
1
0
Fork 0
mirror of https://xff.cz/git/u-boot/ synced 2025-09-01 16:52:14 +02:00
Code Issues Packages Projects Releases Wiki Activity

dwc2: use the nonblock argument in submit_int_msg

Browse Source 
An USB 1.1 keyboard connected to dwc2 through a high-speed hub does not
report status until it changes. With this patch you can enable keyboard
by pressing a key while USB devices are probed. Without a keypress no
state is reported and the probe times out. We don't want to wait for a
keypress or timeout while polling for keypresses so implement an int_msg
nonblock variant that exits early on error.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
This commit is contained in:
Michal Suchanek
2019-08-18 10:55:28 +02:00
committed by marex
parent 3437121c03
commit 9dcab2c4d2
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/usb/host/dwc2.c
View File

@@ -1123,7 +1123,7 @@ int _submit_int_msg(struct dwc2_priv *priv, struct usb_device *dev,
return -ETIMEDOUT;
}
ret = _submit_bulk_msg(priv, dev, pipe, buffer, len);
if (ret != -EAGAIN)
if ((ret != -EAGAIN) || nonblock)
return ret;
}
}