USB

USB

[Sasi Mudannayaka]

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I like to add USB support for GRUB. Can you tell me where to start looking
[?]
Because I'm kind of lost now

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Re: USB

[Vladimir 'φ-coder/phcoder' Serbinenko]

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On 01/25/2011 07:14 AM, Sasi Mudannayaka wrote:
> I like to add USB support for GRUB. Can you tell me where to start
> looking
> Because I'm kind of lost now
What kind of USB code? GRUB2 already has UHCI and OHCI code but no EHCI
or xHCI code. We already support usbms, usb_keyboard and some usbserial
devices.
>
>
> _______________________________________________
> Grub-devel mailing list
> Grub-devel@gnu.org
> http://lists.gnu.org/mailman/listinfo/grub-devel
>   


-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko



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Re: USB

[Sasi Mudannayaka]

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Thanks a lot,
I'm sort of trying to start developing...
But had no clue! I thought developing something would help me understand the
code.
Still I'm trying to understand the source code.

Thanks again...[?]

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Re: usb

[Greg KH]

On Mon, Oct 15, 2007 at 10:37:04AM -0700, Yinghai Lu wrote:
> Greg,
> 
> from linus's git this morning..
> 
> ACPI: PCI Interrupt 0000:00:02.1[B] -> Link [LUB2] -> GSI 21 (level,
> low) -> IRQ 21
> ehci_hcd 0000:00:02.1: EHCI Host Controller
> ehci_hcd 0000:00:02.1: new USB bus registered, assigned bus number 1
> ehci_hcd 0000:00:02.1: debug port 1
> ehci_hcd 0000:00:02.1: irq 21, io mem 0xdefbec00
> ehci_hcd 0000:00:02.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
> usb usb1: configuration #1 chosen from 1 choice
> hub 1-0:1.0: USB hub found
> hub 1-0:1.0: 10 ports detected
> ACPI: PCI Interrupt 0000:00:02.0[A] -> Link [LUB0] -> GSI 22 (level,
> low) -> IRQ 22
> ohci_hcd 0000:00:02.0: OHCI Host Controller
> ohci_hcd 0000:00:02.0: new USB bus registered, assigned bus number 2
> ohci_hcd 0000:00:02.0: irq 22, io mem 0xdefbf000
> usb 1-1: new high speed USB device using ehci_hcd and address 2
> usb usb2: configuration #1 chosen from 1 choice
> hub 2-0:1.0: USB hub found
> hub 2-0:1.0: 10 ports detected
> USB Universal Host Controller Interface driver v3.0
> Initializing USB Mass Storage driver...
> usb 1-1: configuration #1 chosen from 1 choice
> usb 1-6: new high speed USB device using ehci_hcd and address 5
> usb 1-6: configuration #1 chosen from 1 choice
> hub 1-6:1.0: USB hub found
> hub 1-6:1.0: 4 ports detected
> sysfs: duplicate filename 'bInterfaceNumber' can not be created
> WARNING: at fs/sysfs/dir.c:425 sysfs_add_one()
> 
> Call Trace:
>  [<ffffffff802bf326>] sysfs_add_one+0x54/0xbd
>  [<ffffffff802bee22>] sysfs_add_file+0x50/0x81
>  [<ffffffff802c07ec>] sysfs_create_group+0x9a/0xf2
>  [<ffffffff80616cb6>] usb_create_sysfs_intf_files+0x32/0xc7
>  [<ffffffff80613762>] usb_set_configuration+0x49d/0x4c0
>  [<ffffffff8061a672>] generic_probe+0x53/0x95
>  [<ffffffff804a57d3>] driver_probe_device+0xd3/0x150
>  [<ffffffff804a5850>] __device_attach+0x0/0x5
>  [<ffffffff804a4aec>] bus_for_each_drv+0x40/0x71
>  [<ffffffff804a58db>] device_attach+0x63/0x7a
>  [<ffffffff804a4a5e>] bus_attach_device+0x2a/0x78
>  [<ffffffff804a3a20>] device_add+0x308/0x51e
>  [<ffffffff8060ef04>] usb_new_device+0x47/0x80
>  [<ffffffff8060facd>] hub_thread+0x75a/0xb4a
>  [<ffffffff80245787>] autoremove_wake_function+0x0/0x2e
>  [<ffffffff8060f373>] hub_thread+0x0/0xb4a
>  [<ffffffff8024565d>] kthread+0x47/0x76
>  [<ffffffff8020ca58>] child_rip+0xa/0x12
>  [<ffffffff80245616>] kthread+0x0/0x76
>  [<ffffffff8020ca4e>] child_rip+0x0/0x12
> 
> usb 2-3: new full speed USB device using ohci_hcd and address 2
> usb 2-3: configuration #1 chosen from 1 choice
> hub 2-3:1.0: USB hub found
> hub 2-3:1.0: 4 ports detected
> usb 2-5: new low speed USB device using ohci_hcd and address 3
> usb 2-5: configuration #1 chosen from 1 choice
> scsi15 : SCSI emulation for USB Mass Storage devices
> usb 2-3.1: new low speed USB device using ohci_hcd and address 4
> usb 2-3.1: configuration #1 chosen from 1 choice
> usb 2-3.4: new low speed USB device using ohci_hcd and address 5
> usb 2-3.4: configuration #1 chosen from 1 choice

Yes, I can duplicate this here now too.  Will work on this tomorrow to
track down...

thanks,

greg k-h

usb

[Yinghai Lu]

Greg,

from linus's git this morning..

ACPI: PCI Interrupt 0000:00:02.1[B] -> Link [LUB2] -> GSI 21 (level,
low) -> IRQ 21
ehci_hcd 0000:00:02.1: EHCI Host Controller
ehci_hcd 0000:00:02.1: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:02.1: debug port 1
ehci_hcd 0000:00:02.1: irq 21, io mem 0xdefbec00
ehci_hcd 0000:00:02.1: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 10 ports detected
ACPI: PCI Interrupt 0000:00:02.0[A] -> Link [LUB0] -> GSI 22 (level,
low) -> IRQ 22
ohci_hcd 0000:00:02.0: OHCI Host Controller
ohci_hcd 0000:00:02.0: new USB bus registered, assigned bus number 2
ohci_hcd 0000:00:02.0: irq 22, io mem 0xdefbf000
usb 1-1: new high speed USB device using ehci_hcd and address 2
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 10 ports detected
USB Universal Host Controller Interface driver v3.0
Initializing USB Mass Storage driver...
usb 1-1: configuration #1 chosen from 1 choice
usb 1-6: new high speed USB device using ehci_hcd and address 5
usb 1-6: configuration #1 chosen from 1 choice
hub 1-6:1.0: USB hub found
hub 1-6:1.0: 4 ports detected
sysfs: duplicate filename 'bInterfaceNumber' can not be created
WARNING: at fs/sysfs/dir.c:425 sysfs_add_one()

Call Trace:
 [<ffffffff802bf326>] sysfs_add_one+0x54/0xbd
 [<ffffffff802bee22>] sysfs_add_file+0x50/0x81
 [<ffffffff802c07ec>] sysfs_create_group+0x9a/0xf2
 [<ffffffff80616cb6>] usb_create_sysfs_intf_files+0x32/0xc7
 [<ffffffff80613762>] usb_set_configuration+0x49d/0x4c0
 [<ffffffff8061a672>] generic_probe+0x53/0x95
 [<ffffffff804a57d3>] driver_probe_device+0xd3/0x150
 [<ffffffff804a5850>] __device_attach+0x0/0x5
 [<ffffffff804a4aec>] bus_for_each_drv+0x40/0x71
 [<ffffffff804a58db>] device_attach+0x63/0x7a
 [<ffffffff804a4a5e>] bus_attach_device+0x2a/0x78
 [<ffffffff804a3a20>] device_add+0x308/0x51e
 [<ffffffff8060ef04>] usb_new_device+0x47/0x80
 [<ffffffff8060facd>] hub_thread+0x75a/0xb4a
 [<ffffffff80245787>] autoremove_wake_function+0x0/0x2e
 [<ffffffff8060f373>] hub_thread+0x0/0xb4a
 [<ffffffff8024565d>] kthread+0x47/0x76
 [<ffffffff8020ca58>] child_rip+0xa/0x12
 [<ffffffff80245616>] kthread+0x0/0x76
 [<ffffffff8020ca4e>] child_rip+0x0/0x12

usb 2-3: new full speed USB device using ohci_hcd and address 2
usb 2-3: configuration #1 chosen from 1 choice
hub 2-3:1.0: USB hub found
hub 2-3:1.0: 4 ports detected
usb 2-5: new low speed USB device using ohci_hcd and address 3
usb 2-5: configuration #1 chosen from 1 choice
scsi15 : SCSI emulation for USB Mass Storage devices
usb 2-3.1: new low speed USB device using ohci_hcd and address 4
usb 2-3.1: configuration #1 chosen from 1 choice
usb 2-3.4: new low speed USB device using ohci_hcd and address 5
usb 2-3.4: configuration #1 chosen from 1 choice

YH

Re: USB

[Saurabh Rawat]

> join www.forums.microchip.com
under analog ang PIC interfaces you will find a lot of good links, suggestions
and peoples.
Regards
Saurabh
> Hi,
> i want to know somthing abou USB device programing. Which book or links
> do you advice my?
>
> Thanks
> -
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>

USB

[makita]

Hi,
i want to know somthing abou USB device programing. Which book or links
do you advice my?

Thanks