2009/3/12 Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>: > On Thu, 12 Mar 2009, Greg KH wrote: > >> On Thu, Mar 12, 2009 at 10:26:47PM +0800, vichy wrote: >> > Dear all: >> > I am porting ehci-host driver on my arm platform. >> > So far the host seems correctly enabled, but I have no idea how to >> > read the contents of USB storages as Ubuntu does. > >> > And I decide to build the drivers I need one by one. >> > If someone knows the whole list of drivers I need, please let me know. >> > ( The module utility is fail on my platform, so I use build-in to >> > develop driver.) >> >> usb-storage. > > You also will need scsi_mod (which is required by usb-storage) and > sd_mod. > > Alan Stern Hi: I use uclinux to port ehci host and I have 2 questions below: 1. When porting the host driver, I have error message as below. EHCI_TEST-ehci EHCI_TEST-ehci.0: port 1 high speed EHCI_TEST-ehci EHCI_TEST-ehci.0: GetStatus port 1 status 00000d sig=se0 PEC PE CONNECT usb 1-1: device descriptor read/64, error -110 EHCI_TEST-ehci EHCI_TEST-ehci.0: port 1 high speed EHCI_TEST-ehci EHCI_TEST-ehci.0: GetStatus port 1 status 00000d sig=se0 PEC PE CONNECT usb 1-1: device descriptor read/64, error -110 EHCI_TEST-ehci EHCI_TEST-ehci.0: port 1 high speed EHCI_TEST-ehci EHCI_TEST-ehci.0: GetStatus port 1 status 00000d sig=se0 PEC PE CONNECT usb 1-1: new high speed USB device using EHCI_TEST-ehci and address 3 EHCI_TEST-ehci EHCI_TEST-ehci.0: port 1 high speed EHCI_TEST-ehci EHCI_TEST-ehci.0: GetStatus port 1 status 00000d sig=se0 PEC PE CONNECT usb 1-1: device descriptor read/64, error -110 EHCI_TEST-ehci EHCI_TEST-ehci.0: port 1 high speed EHCI_TEST-ehci EHCI_TEST-ehci.0: GetStatus port 1 status 00000d sig=se0 PEC PE CONNECT usb 1-1: device descriptor read/64, error -110 EHCI_TEST-ehci EHCI_TEST-ehci.0: port 1 high speed EHCI_TEST-ehci EHCI_TEST-ehci.0: GetStatus port 1 status 00000d sig=se0 PEC PE CONNECT usb 1-1: new high speed USB device using EHCI_TEST-ehci and address 4 usb 1-1: device not accepting address 4, error -110 EHCI_TEST-ehci EHCI_TEST-ehci.0: port 1 high speed EHCI_TEST-ehci EHCI_TEST-ehci.0: GetStatus port 1 status 00000d sig=se0 PEC PE CONNECT usb 1-1: new high speed USB device using EHCI_TEST-ehci and address 5 usb 1-1: device not accepting address 5, error -110 The error comes from hub_port_connect_change, while doing the config_tries. Is there debug option which can let me see the content of urb such that I can make sure the qhd is properly set. 2. from the message at the end of letter, it seems I duplicate my driver in sysfs. I have searched the source but I cannot find out where it is. what I do is modifying ehci-au1xxx.c. Does the problem 1 come from problem2? ( I don't think so, since port communication should not have any relationship with sysfs) appreciate your help, vichy sysfs: duplicate filename 'EHCI_TEST-ehci' can not be created ------------[ cut here ]------------ WARNING: at fs/sysfs/dir.c:424 sysfs_add_one+0xb8/0xdc() [<80063578>] (dump_stack+0x0/0x14) from [<8006cf50>] (warn_on_slowpath+0x48/0x5c) [<8006cf08>] (warn_on_slowpath+0x0/0x5c) from [<800d0450>] (sysfs_add_one+0xb8/0xdc) r6:83d9a850 r5:83c15e6c r4:83d9a850 [<800d0398>] (sysfs_add_one+0x0/0xdc) from [<800d0550>] (create_dir+0x5c/0xb4) r6:83d8b550 r5:83c15e6c r4:83d9a850 [<800d04f4>] (create_dir+0x0/0xb4) from [<800d0600>] (sysfs_create_dir+0x38/0x60) r7:83c04a14 r6:00000000 r5:00000000 r4:83d8b550 [<800d05c8>] (sysfs_create_dir+0x0/0x60) from [<800d5cec>] (kobject_add_internal+0x74/0x1b0) r4:83d8b550 [<800d5c78>] (kobject_add_internal+0x0/0x1b0) from [<800d5e6c>] (kobject_add_varg+0x44/0x4c) r7:8001503c r6:00000000 r5:00000000 r4:83d8b550 [<800d5e28>] (kobject_add_varg+0x0/0x4c) from [<800d5ea4>] (kobject_init_and_add+0x30/0x34) r6:00000000 r5:00000000 r4:83d8b550 [<800d5e78>] (kobject_init_and_add+0x4/0x34) from [<800f0cdc>] (bus_add_driver+0x90/0x24c) r5:80154d50 r4:00000000 [<800f0c4c>] (bus_add_driver+0x0/0x24c) from [<800f1d3c>] (driver_register+0x40/0xec) [<800f1cfc>] (driver_register+0x0/0xec) from [<800f3838>] (platform_driver_register+0x6c/0x88) r7:8001503c r6:ffffffed r5:00000000 r4:8015ec08 [<800f37cc>] (platform_driver_register+0x0/0x88) from [<80013c48>] (ehci_hcd_init+0x58/0x88) [<80013bf0>] (ehci_hcd_init+0x0/0x88) from [<80008bf0>] (kernel_init+0xa4/0x2e0) r4:00000000 [<80008b4c>] (kernel_init+0x0/0x2e0) from [<8006f764>] (do_exit+0x0/0x63c) ---[ end trace 18179480a435c8ba ]--- .. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
