Hello,
I have a scanner with only one usb configuration. Using
usb_set_configuration on it will result on a failed usb call. So to avoid
problem I moved all the usb_set_configuration and the result testing within
the case where dev->descriptor.bNumConfigurations > 1 . Then if I move the
libusb_set_configuration in the if, I still have problems,
libusb_control_transfer fails (retrun code -99 : other error) line 2508 in
sanei_usb.c.
So if I use libusb1.0, the HP3670 fails, when other devices need this
version. Any idea ?
Bus 005 Device 004: ID 03f0:1405 Hewlett-Packard ScanJet 3670
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 255 Vendor Specific Subclass
bDeviceProtocol 255 Vendor Specific Protocol
bMaxPacketSize0 8
idVendor 0x03f0 Hewlett-Packard
idProduct 0x1405 ScanJet 3670
bcdDevice 1.00
iManufacturer 1
iProduct 2
iSerial 12
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 48mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0001 1x 1 bytes
bInterval 8
Device Status: 0x0690
(Bus Powered)
sanei_usb log:
[genesys] sane_open: start (devicename = `libusb:005:004')
[genesys] sane_open: found `hewlett-packard-scanjet-3670c' in devlist
[sanei_usb] sanei_usb_open: trying to open device `libusb:005:004'
[sanei_usb] sanei_usb_open: configuration nr: 0
[sanei_usb] sanei_usb_open: interface nr: 0
[sanei_usb] sanei_usb_open: alt_setting nr: 0
[sanei_usb] sanei_usb_open: endpoint nr: 0
[sanei_usb] sanei_usb_open: direction: 128
[sanei_usb] sanei_usb_open: address: 1 transfertype: 2
[sanei_usb] sanei_usb_open: found bulk-in endpoint (address 0x01)
[sanei_usb] sanei_usb_open: we already have a bulk-in endpoint (address:
0x81), ignoring the new one
[sanei_usb] sanei_usb_open: endpoint nr: 1
[sanei_usb] sanei_usb_open: direction: 0
[sanei_usb] sanei_usb_open: address: 2 transfertype: 2
[sanei_usb] sanei_usb_open: found bulk-out endpoint (address 0x02)
[sanei_usb] sanei_usb_open: we already have a bulk-out endpoint (address:
0x02), ignoring the new one
[sanei_usb] sanei_usb_open: endpoint nr: 2
[sanei_usb] sanei_usb_open: direction: 128
[sanei_usb] sanei_usb_open: address: 3 transfertype: 3
[sanei_usb] sanei_usb_open: found interrupt-in endpoint (address 0x03)
[sanei_usb] sanei_usb_open: we already have a int-in endpoint (address: 0x83),
ignoring the new one
[sanei_usb] sanei_usb_open: opened usb device `libusb:005:004' (*dn=0)
[genesys] init_options: start
[genesys] init_options: exit
[sanei_debug] Setting debug level of genesys_low to 255.
[sanei_debug] Setting debug level of genesys_gl646 to 255.
[genesys_gl646] gl646_init: start
[sanei_usb] sanei_usb_control_msg: rtype = 0x40, req = 12, value = 131, index
= 0, len = 1
[sanei_usb] 000 41 A
libusb:warning [libusb_control_transfer] unrecognised status code 1
[sanei_usb] sanei_usb_control_msg: libusb complained: Other error
[genesys_low] sanei_genesys_read_register (0x41, 0x00): failed while setting
register: Invalid argument
[genesys] sane_exit: start
[genesys] sane_exit: exit
Regards,
Stef
