leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

usb: Handle -ENODEV from usb_lowlevel_init()

Browse Source 
As we support both Host and Device mode operation, an OTG controller
can return -ENODEV on a port which it found to be in Device mode during
Host mode scan for devices. In case -ENODEV is returned, print that the
port is not available and continue instead of screaming a bloody error
message.

Signed-off-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Marek Vasut 2014-08-01 03:09:53 +02:00
parent 124c599875
commit 97b9eb9e6a
1 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
common/usb.c
View File

@ -34,7 +34,7 @@
#include <asm/byteorder.h>
#include <asm/unaligned.h>
#include <compiler.h>
#include <errno.h>
#include <usb.h>
#ifdef CONFIG_4xx
#include <asm/4xx_pci.h>
@ -60,6 +60,7 @@ int usb_init(void)
void *ctrl;
struct usb_device *dev;
int i, start_index = 0;
int ret;
dev_index = 0;
asynch_allowed = 1;
@ -75,7 +76,13 @@ int usb_init(void)
for (i = 0; i < CONFIG_USB_MAX_CONTROLLER_COUNT; i++) {
/* init low_level USB */
printf("USB%d: ", i);
if (usb_lowlevel_init(i, USB_INIT_HOST, &ctrl)) {
ret = usb_lowlevel_init(i, USB_INIT_HOST, &ctrl);
if (ret == -ENODEV) { /* No such device. */
puts("Port not available.\n");
continue;
}
if (ret) { /* Other error. */
puts("lowlevel init failed\n");
continue;
}