Hello alltogether,
I have encountered an interesting issue when using a low-speed USB mouse over
a hi-speed USB 2.0 hub.
My setup is the following:
+-------------+ +-------------+ +-------+
| Motherboard |<-->| USB 2.0 Hub |<-->| Mouse |
+-------------+ +-------------+ +-------+
Motherboard is a Supermicro X6DH3-G2 with dual XEON 3GHz.
USB 2.0 Hub is a Philips ISP1520
Mouse is a general purpose optical USB mouse made by Logitec.
Kernel is a 2.6.11 with SMP support enabled.
UHCI driver is compiled directly into kernel. EHCI driver is modular.
When mouse is moved during boot, boot process stops when the UHCI driver gets
initialized.
When UHCI driver is compiled as a module, everything works fine.
Has anyone an explanation for this interesting behaviour?
Thomas
--
Thomas Thanner
Manager System Development
Citron GmbH
Anwaltinger Str. 14
D-86165 Augsburg
Tel. : ++49-821-74945-0
Fax. : ++49-821-74945-99
Email: [EMAIL PROTECTED]
http://www.citron.de
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