gwj / at91sam9263 · Commits

Commit d55ebf5539139b26b9c6412a834cb493f008a8a9

Authored by Jason Wessel
Committed by Anthony Liguori
1 parent 40ff1624

USB serial device support 

Add in a workaround to allow the usb serial devices to work with the
usb pass through mechanism.  The ioctl() to request an alternate
interface will always return < 0 for a usb-serial device based on the
kernel driver.  This means there is no alternate interface end point.

This was fully tested with a pl2303 usb serial device.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Inline Side-by-side
Showing 1 changed file with 1 additions and 2 deletions
usb-linux.c
  View file @d55ebf5
... ... @@ -833,8 +833,7 @@ static int usb_linux_update_endp_table(USBHostDevice *s)
833 833  
834 834 ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct);
835 835 if (ret < 0) {
836   - perror("usb_linux_update_endp_table");
837   - return 1;
  836 + alt_interface = interface;
838 837 }
839 838  
840 839 /* the current interface descriptor is the active interface
... ...