1ohci(7D)                            Devices                           ohci(7D)
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NAME

6       ohci - OpenHCI host controller driver
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SYNOPSIS

9       usb@unit-address
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DESCRIPTION

13       The  ohci  driver  is a USBA (Solaris USB Architecture) compliant nexus
14       driver that supports the Open Host Controller  Interface  Specification
15       1.1,  an industry standard developed by Compaq, Microsoft, and National
16       Semiconductor.
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19       The ohci driver  supports  bulk,  interrupt,  control  and  isochronous
20       transfers.
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FILES

23       /kernel/drv/ohci            32-bit x86 ELF kernel module
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26       /kernel/drv/amd64/ohci      64-bit x86 ELF kernel module
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29       /kernel/drv/sparcv9/ohci    64-bit SPARC ELF kernel module
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32       /kernel/drv/ohci.conf       driver configuration file
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ATTRIBUTES

36       See attributes(5) for descriptions of the following attributes:
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41       ┌─────────────────────────────┬───────────────────────────────┐
42       │      ATTRIBUTE TYPE         │       ATTRIBUTE VALUE         │
43       ├─────────────────────────────┼───────────────────────────────┤
44       │Architecture                 │SPARC, x86, PCI-based systems  │
45       ├─────────────────────────────┼───────────────────────────────┤
46       │Availability                 │SUNWusb                        │
47       └─────────────────────────────┴───────────────────────────────┘
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SEE ALSO

50       attributes(5), ehci(7D), hubd(7D), uhci(7D), usba(7D)
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53       Writing Device Drivers
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56       Universal Serial Bus Specification 2.0
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59       Open Host Controller Interface Specification for USB 1.0a
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62       System Administration Guide: Basic Administration
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65       http://www.sun.com/io
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DIAGNOSTICS

68       All  host  controller errors are passed to the client drivers. Root hub
69       errors are documented in hubd(7D).
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72       In addition to being logged, the following messages may appear  on  the
73       system console. All messages are formatted in the following manner:
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75         WARNING: <device path> <ohci><instance number>>: Error message...
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79       Unrecoverable USB Hardware Error.
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81           There  was an unrecoverable USB hardware error reported by the OHCI
82           Controller. Please reboot the system.  If  this  problem  persists,
83           contact your system vendor.
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86       No SOF interrupts have been received. This OHCI USB controller is unus‐
87       able.
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89           The USB hardware is  not  generating  Start  Of  Frame  interrupts.
90           Please  reboot  the  system. If this problem persists, contact your
91           system vendor.
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95       The following messages may be entered into the  system  log.  They  are
96       formatted in the following manner:
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98         <device path> <ohci<instance number>): Message...
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102       Failed to program frame interval register.
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104           For  an  unspecified  reason,  the frame interval register has been
105           nulled out by the Uli M1575 chip. Please reboot the system. If this
106           problem persists, contact your system vendor.
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111SunOS 5.11                        23 Nov 2006                         ohci(7D)