Changeset be554d9 in mainline for uspace/drv/bus/usb/uhci/uhci_rh.c

Timestamp:

2013-01-06T14:46:44Z (11 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

b995183

Parents:

e646c61

Message:

uhci: Add workaround for certain hw.

Fixes UHCI on acer aspire one(NM10/ICH10) after switch to new rh driver.

File:

• uspace/drv/bus/usb/uhci/uhci_rh.c (modified) (1 diff)

uspace/drv/bus/usb/uhci/uhci_rh.c

@@ -124 +124 @@
          * enter suspend state. */
         udelay(10);
-        /* Enable the port. */
+        /* Drop ConnectionChange as some UHCI hw
+         * sets this bit after reset, that is incorrect */
         port_status &= ~STATUS_WC_BITS;
-        pio_write_16(port, port_status | STATUS_ENABLED);
+        pio_write_16(port, port_status | STATUS_ENABLED | STATUS_CONNECTED_CHANGED);
 }
 #define TEST_SIZE_INIT(size, port, hub) \