Changeset fa9656b0 in mainline for uspace/drv/bus/usb/ehci/ehci_rh.c

Timestamp:

2014-01-24T21:06:46Z (10 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

b8191cc

Parents:

fdaaad00

Message:

ehci: Be easier on the cpu when waiting for port reset

File:

• uspace/drv/bus/usb/ehci/ehci_rh.c (modified) (1 diff)

uspace/drv/bus/usb/ehci/ehci_rh.c

@@ -391 +391 @@
                 /* wait for reset to complete */
                 while (EHCI_RD(hub->registers->portsc[port]) &
-                    USB_PORTSC_PORT_RESET_FLAG);
+                    USB_PORTSC_PORT_RESET_FLAG) {
+                    async_usleep(1);
+                };
                 /* Handle port ownership, if the port is not enabled
                  * after reset it's a full speed device */