forked from Minki/linux
0775a9cbc6
Modification to Kconfig, vhci_hc.c, vhci.h and vhci_sysfs.c.
1. kernel config
Followings are added.
USBIP_VHCI_HC_PORTS: Number of ports per USB/IP virtual host
controller. The default is 8 - same as current VHCI_NPORTS.
USBIP_VHCI_NR_HCS: Number of USB/IP virtual host controllers. The
default is 1. This paratmeter is replaced with USBIP_VHCI_INIT_HCS and
USBIP_VHCI_MAX_HCS included in succeeding dynamic extension patch.
2. the_controller to controllers
the_controller is changed to vhci_pdevs: array of struct
platform_device.
3. vhci_sysfs.c
Sysfs structure is changed as following.
BEFORE:
/sys/devices/platform
+-- vhci
+-- status
+-- attach
+-- detach
+-- usbip_debug
AFTER: example for CONFIG_USBIP_NR_HCS=4
/sys/devices/platform
+-- vhci
| +-- nports
| +-- status
| +-- status.1
| +-- status.2
| +-- status.3
| +-- attach
| +-- detach
| +-- usbip_debug
+-- vhci.1
+-- vhci.2
+-- vhci.3
vhci[.N] is shown for each host controller kobj. vhch.1, vhci.2, ...
are shown only when CONFIG_USBIP_NR_HCS is more than 1. Only 'vhci'
(without number) has user space interfaces. 'nports' is newly added to
give ports-per-controller and number of controlles. Before that, number
of ports is acquired by reading status lines. Status is divided for
each controller to avoid page size (4KB) limitation.
Old userspace tool binaries work with the first status within the first
controller.
Inconsistency between status header and content is fixed.
4th and 5th column are
header: "dev bus"
content(unused): "000 000"
content(used): "%08x", devid
Only 1st and 2nd column are used by program. In old version, sscanf()
in parse_status expect no bus column. And bus_id string is shown in the
last column. Then bus in the header is removed and unused content is
replaced with 8 zeros. The sscanf() expects more than 5 columns and new
has 6 columns so there's no compatibility issue in this change.
Signed-off-by: Nobuo Iwata <nobuo.iwata@fujixerox.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
74 lines
2.1 KiB
Plaintext
74 lines
2.1 KiB
Plaintext
config USBIP_CORE
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tristate "USB/IP support"
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depends on USB_COMMON && NET
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---help---
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This enables pushing USB packets over IP to allow remote
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machines direct access to USB devices. It provides the
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USB/IP core that is required by both drivers.
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For more details, and to get the userspace utility
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programs, please see <http://usbip.sourceforge.net/>.
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To compile this as a module, choose M here: the module will
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be called usbip-core.
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If unsure, say N.
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config USBIP_VHCI_HCD
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tristate "VHCI hcd"
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depends on USBIP_CORE && USB
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---help---
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This enables the USB/IP virtual host controller driver,
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which is run on the remote machine.
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To compile this driver as a module, choose M here: the
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module will be called vhci-hcd.
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config USBIP_VHCI_HC_PORTS
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int "Number of ports per USB/IP virtual host controller"
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range 1 31
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default 8
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depends on USBIP_VHCI_HCD
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---help---
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To increase number of ports available for USB/IP virtual
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host controller driver, this defines number of ports per
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USB/IP virtual host controller.
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config USBIP_VHCI_NR_HCS
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int "Number of USB/IP virtual host controllers"
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range 1 128
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default 1
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depends on USBIP_VHCI_HCD
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---help---
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To increase number of ports available for USB/IP virtual
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host controller driver, this defines number of USB/IP
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virtual host controllers as if adding physical host
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controllers.
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config USBIP_HOST
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tristate "Host driver"
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depends on USBIP_CORE && USB
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---help---
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This enables the USB/IP host driver, which is run on the
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machine that is sharing the USB devices.
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To compile this driver as a module, choose M here: the
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module will be called usbip-host.
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config USBIP_VUDC
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tristate "VUDC driver"
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depends on USBIP_CORE && USB_GADGET
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---help---
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This enables the USB/IP virtual USB device controller
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driver, which is run on the host machine, allowing the
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machine itself to act as a device.
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To compile this driver as a module, choose M here: the
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module will be called usbip-vudc.
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config USBIP_DEBUG
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bool "Debug messages for USB/IP"
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depends on USBIP_CORE
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---help---
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This enables the debug messages from the USB/IP drivers.
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