Mct U232 P9 Driver
Mct U232-p9 Driver
618.868887 usbcore: registered new interface driver mctu232. Z2.1:Magic Control Technology USB-RS232 converter driver # insert U232-P9 adapter $ dmesg. DRIVERS UPDATE: USB TO SERIAL U232 P9. Usb serial adapter supports windows. Download driver cabo conversor usb x serial rs232 hl-340. May 15, 2013 u232 p9 driver download windows 7 64 bit - Garmin U232-P9 MCT GPS USB to Serial question. Even the prolific had drivers for Windows 7 64-bit but the weather. To Serial Converter in 64bit Windows 7/Vista. Great with the U232-P9 driver and Windows 10. Index des drivers M MCT U232-13.2.98.130315.zip. We suggest you download the driver directly from the manufacturer's site. Great with the U232-P9 driver and Windows 10. U232-P9 CONVERTER DRIVERS FOR WINDOWS 7 - downloaded 12 times, uploaded on, receiving a 4.89/5 rating by 13 users. MCT, Headquartered in Taipei, Taiwan, was established in 1997. Sep usb 232 converter u 232-p 9 driv Anyone know where I can get the U 232-P 9 2.4 RS232/USB converter, Win 10 drivers.
Mct U232-p9 Windows 7 Driver
Mct U232-p9 Driver Windows 10
2010-10-20 06:21:06 UTC
Mct U232-p9 Driver
I have a purple 'U232-P9(2.4)' USB to Serial adapter. The distributor
I bought it from made a big deal about the purple color distinguishing
this from other similar adapters.
This adapter works with kernel 2.6.34.7 and breaks with kernel 2.6.35,
both mainline for Ubuntu from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/
Steps to reproduce the issue:
$ uname -r
2.6.35-020635-generic
$ sudo modprobe usbserial debug=1
$ sudo modprobe mct_u232 debug=1
$ dmesg
[ 612.946015] usbcore: registered new interface driver usbserial
[ 612.946020] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the open usb serial operation with the generic one.
[ 612.946023] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 612.946026] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the close usb serial operation with the generic one.
[ 612.946029] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 612.946032] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 612.946035] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 612.946038] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 612.946041] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the process_read_urb usb serial operation with the
generic one.
[ 612.946044] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the prepare_write_buffer usb serial operation with the
generic one.
[ 612.946062] USB Serial support registered for generic
[ 612.946546] usbcore: registered new interface driver usbserial_generic
[ 612.946549] usbserial: USB Serial Driver core
[ 618.868804] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 618.868809] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 618.868812] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 618.868815] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 618.868818] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 618.868821] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the disconnect usb serial operation with the generic
one.
[ 618.868824] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the process_read_urb usb serial operation with the
generic one.
[ 618.868827] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the prepare_write_buffer usb serial operation with the
generic one.
[ 618.868850] USB Serial support registered for MCT U232
[ 618.868887] usbcore: registered new interface driver mct_u232
[ 618.868889] mct_u232: z2.1:Magic Control Technology USB-RS232
converter driver
# insert U232-P9 adapter
$ dmesg
[ 655.873178] usb 6-2: new full speed USB device using uhci_hcd and address 4
[ 656.538058] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
static descriptor matches
[ 656.538069] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 0
[ 656.538077] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 1
[ 656.538084] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found bulk out on endpoint 2
[ 656.538092] mct_u232 6-2:1.0: MCT U232 converter detected
[ 656.538098] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - setting up 2 port structures for this device
[ 656.538119] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial 1
[ 656.538127] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial - minor base = 0
[ 656.538136] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - registering ttyUSB0
[ 656.538309] usb 6-2: MCT U232 converter now attached to ttyUSB0
# Run 'arduino' Java-based IDE which accesses serial port
$ dmesg
[ 711.975992] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 711.976044] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 711.976050] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_open port 0
[ 711.977915] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x6 > mcr=0xb
[ 711.978911] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 711.979910] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
get_modem_stat: 0x0
[ 711.979915] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
msr_to_state: msr=0x0 > state=0x6
[ 711.980909] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x6 > mcr=0xb
[ 711.980925] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.980939] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.980945] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 711.980952] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 711.981904] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: value: 0x2580, divisor: 0x8
[ 711.982908] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: send second control message, data = 00
[ 711.984899] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 711.984914] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.984933] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.984943] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 711.984953] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 711.985897] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: value: 0x2580, divisor: 0x8
[ 711.986915] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: send second control message, data = 00
[ 711.988898] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 711.988913] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.988997] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 711.989034] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_chars_in_buffer - port 0
[ 711.989045] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - port 0
[ 711.989056] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - returns 0
[ 711.989910] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x0 > mcr=0x8
[ 711.989920] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_close port 0
[ 711.989927] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_close - port 0
[ 711.989935] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
generic_cleanup - port 0
[ 711.990884] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_read_int_callback - urb shutting down with status: -2
[ 711.990924] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
[ 712.001901] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 712.001924] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 712.001933] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_open port 0
[ 712.003901] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x6 > mcr=0xb
[ 712.004907] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 712.005890] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
get_modem_stat: 0x0
[ 712.005898] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
msr_to_state: msr=0x0 > state=0x6
[ 712.005908] mct_u232 ttyUSB0: usb_submit_urb(read bulk) failed pipe
0x40410480 err -22
[ 712.005919] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 712.006883] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x0 > mcr=0x8
[ 712.006914] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
And so ttyUSB0 is not usable.
What happens when it is working:
$ uname -r
2.6.34-02063407-generic
$ sudo modprobe usbserial debug=1
$ sudo modprobe mct_u232 debug=1
$ dmesg
[ 801.416561] usbcore: registered new interface driver usbserial
[ 801.416565] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the open usb serial operation with the generic one.
[ 801.416568] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 801.416571] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the close usb serial operation with the generic one.
[ 801.416574] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 801.416577] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 801.416580] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 801.416582] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 801.416596] USB Serial support registered for generic
[ 801.416635] usbcore: registered new interface driver usbserial_generic
[ 801.416637] usbserial: USB Serial Driver core
[ 812.468040] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 812.468045] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 812.468048] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 812.468051] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 812.468054] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 812.468057] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the disconnect usb serial operation with the generic
one.
[ 812.468080] USB Serial support registered for MCT U232
[ 812.468113] usbcore: registered new interface driver mct_u232
[ 812.468115] mct_u232: z2.1:Magic Control Technology USB-RS232
converter driver
# insert U232-P9 adapter
$ dmesg
[ 905.373173] usb 6-2: new full speed USB device using uhci_hcd and address 4
[ 906.140558] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
static descriptor matches
[ 906.140568] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 0
[ 906.140575] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 1
[ 906.140582] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found bulk out on endpoint 2
[ 906.140589] mct_u232 6-2:1.0: MCT U232 converter detected
[ 906.140596] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - setting up 2 port structures for this device
[ 906.140614] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial 1
[ 906.140621] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial - minor base = 0
[ 906.140629] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - registering ttyUSB0
[ 906.140771] usb 6-2: MCT U232 converter now attached to ttyUSB0
# Run 'arduino' Java-based IDE which accesses serial port
$ dmesg
[ 974.831471] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 974.831485] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 974.836101] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.836122] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.836128] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.836135] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.840156] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.840181] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.840190] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.840199] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.844091] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.844187] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 974.844193] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_chars_in_buffer - port 0
[ 974.844199] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - port 0
[ 974.844204] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - returns 0
[ 974.847107] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
[ 974.858826] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 974.858838] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 974.863118] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.863128] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.863134] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.863140] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.867114] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.867124] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.867130] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.867136] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.871122] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.871210] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 974.871219] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_chars_in_buffer - port 0
[ 974.871227] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - port 0
[ 974.871235] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - returns 0
[ 974.874136] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
Having trouble to find which patch introduced this issue, and what the
problem is exactly. It looks like there are so many updates to USB
from 2.6.34 into 2.6.35 that I'm beyond my reach.
Eric
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I bought it from made a big deal about the purple color distinguishing
this from other similar adapters.
This adapter works with kernel 2.6.34.7 and breaks with kernel 2.6.35,
both mainline for Ubuntu from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/
Steps to reproduce the issue:
$ uname -r
2.6.35-020635-generic
$ sudo modprobe usbserial debug=1
$ sudo modprobe mct_u232 debug=1
$ dmesg
[ 612.946015] usbcore: registered new interface driver usbserial
[ 612.946020] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the open usb serial operation with the generic one.
[ 612.946023] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 612.946026] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the close usb serial operation with the generic one.
[ 612.946029] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 612.946032] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 612.946035] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 612.946038] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 612.946041] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the process_read_urb usb serial operation with the
generic one.
[ 612.946044] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the prepare_write_buffer usb serial operation with the
generic one.
[ 612.946062] USB Serial support registered for generic
[ 612.946546] usbcore: registered new interface driver usbserial_generic
[ 612.946549] usbserial: USB Serial Driver core
[ 618.868804] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 618.868809] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 618.868812] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 618.868815] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 618.868818] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 618.868821] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the disconnect usb serial operation with the generic
one.
[ 618.868824] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the process_read_urb usb serial operation with the
generic one.
[ 618.868827] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the prepare_write_buffer usb serial operation with the
generic one.
[ 618.868850] USB Serial support registered for MCT U232
[ 618.868887] usbcore: registered new interface driver mct_u232
[ 618.868889] mct_u232: z2.1:Magic Control Technology USB-RS232
converter driver
# insert U232-P9 adapter
$ dmesg
[ 655.873178] usb 6-2: new full speed USB device using uhci_hcd and address 4
[ 656.538058] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
static descriptor matches
[ 656.538069] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 0
[ 656.538077] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 1
[ 656.538084] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found bulk out on endpoint 2
[ 656.538092] mct_u232 6-2:1.0: MCT U232 converter detected
[ 656.538098] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - setting up 2 port structures for this device
[ 656.538119] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial 1
[ 656.538127] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial - minor base = 0
[ 656.538136] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - registering ttyUSB0
[ 656.538309] usb 6-2: MCT U232 converter now attached to ttyUSB0
# Run 'arduino' Java-based IDE which accesses serial port
$ dmesg
[ 711.975992] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 711.976044] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 711.976050] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_open port 0
[ 711.977915] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x6 > mcr=0xb
[ 711.978911] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 711.979910] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
get_modem_stat: 0x0
[ 711.979915] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
msr_to_state: msr=0x0 > state=0x6
[ 711.980909] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x6 > mcr=0xb
[ 711.980925] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.980939] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.980945] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 711.980952] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 711.981904] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: value: 0x2580, divisor: 0x8
[ 711.982908] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: send second control message, data = 00
[ 711.984899] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 711.984914] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.984933] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.984943] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 711.984953] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 711.985897] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: value: 0x2580, divisor: 0x8
[ 711.986915] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: send second control message, data = 00
[ 711.988898] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 711.988913] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.988997] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 711.989034] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_chars_in_buffer - port 0
[ 711.989045] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - port 0
[ 711.989056] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - returns 0
[ 711.989910] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x0 > mcr=0x8
[ 711.989920] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_close port 0
[ 711.989927] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_close - port 0
[ 711.989935] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
generic_cleanup - port 0
[ 711.990884] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_read_int_callback - urb shutting down with status: -2
[ 711.990924] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
[ 712.001901] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 712.001924] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 712.001933] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_open port 0
[ 712.003901] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x6 > mcr=0xb
[ 712.004907] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 712.005890] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
get_modem_stat: 0x0
[ 712.005898] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
msr_to_state: msr=0x0 > state=0x6
[ 712.005908] mct_u232 ttyUSB0: usb_submit_urb(read bulk) failed pipe
0x40410480 err -22
[ 712.005919] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 712.006883] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x0 > mcr=0x8
[ 712.006914] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
And so ttyUSB0 is not usable.
What happens when it is working:
$ uname -r
2.6.34-02063407-generic
$ sudo modprobe usbserial debug=1
$ sudo modprobe mct_u232 debug=1
$ dmesg
[ 801.416561] usbcore: registered new interface driver usbserial
[ 801.416565] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the open usb serial operation with the generic one.
[ 801.416568] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 801.416571] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the close usb serial operation with the generic one.
[ 801.416574] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 801.416577] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 801.416580] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 801.416582] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 801.416596] USB Serial support registered for generic
[ 801.416635] usbcore: registered new interface driver usbserial_generic
[ 801.416637] usbserial: USB Serial Driver core
[ 812.468040] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 812.468045] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 812.468048] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 812.468051] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 812.468054] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 812.468057] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the disconnect usb serial operation with the generic
one.
[ 812.468080] USB Serial support registered for MCT U232
[ 812.468113] usbcore: registered new interface driver mct_u232
[ 812.468115] mct_u232: z2.1:Magic Control Technology USB-RS232
converter driver
# insert U232-P9 adapter
$ dmesg
[ 905.373173] usb 6-2: new full speed USB device using uhci_hcd and address 4
[ 906.140558] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
static descriptor matches
[ 906.140568] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 0
[ 906.140575] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 1
[ 906.140582] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found bulk out on endpoint 2
[ 906.140589] mct_u232 6-2:1.0: MCT U232 converter detected
[ 906.140596] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - setting up 2 port structures for this device
[ 906.140614] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial 1
[ 906.140621] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial - minor base = 0
[ 906.140629] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - registering ttyUSB0
[ 906.140771] usb 6-2: MCT U232 converter now attached to ttyUSB0
# Run 'arduino' Java-based IDE which accesses serial port
$ dmesg
[ 974.831471] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 974.831485] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 974.836101] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.836122] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.836128] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.836135] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.840156] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.840181] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.840190] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.840199] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.844091] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.844187] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 974.844193] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_chars_in_buffer - port 0
[ 974.844199] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - port 0
[ 974.844204] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - returns 0
[ 974.847107] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
[ 974.858826] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 974.858838] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 974.863118] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.863128] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.863134] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.863140] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.867114] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.867124] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.867130] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.867136] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.871122] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.871210] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 974.871219] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_chars_in_buffer - port 0
[ 974.871227] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - port 0
[ 974.871235] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - returns 0
[ 974.874136] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
Having trouble to find which patch introduced this issue, and what the
problem is exactly. It looks like there are so many updates to USB
from 2.6.34 into 2.6.35 that I'm beyond my reach.
Eric
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