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SubjectRe: [PATCH] usb-serial: pl2303: add support for RATOC REX-USB60F
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# Sorry, resend with new linux-usb ML address.

On Fri, 18 Jan 2008 18:58:28 +0900, Akira Tsukamoto <akirat@rd.scei.sony.co.jp> wrote:
> pl2303: add support for RATOC REX-USB60F
>
> This patch adds support for RATOC REX-USB60F Serial Adapters,
> which is widely used in Japan recently.
>
> Signed-off-by: Akira Tsukamoto <akirat@rd.scei.sony.co.jp>
> ---
>
> diff -uprX dontdiff linux-2.6.24-rc8.orig/drivers/usb/serial/pl2303.c linux-2.6.24-rc8/drivers/usb/serial/pl2303.c
> --- linux-2.6.24-rc8.orig/drivers/usb/serial/pl2303.c 2008-01-18 18:11:51.000000000 +0900
> +++ linux-2.6.24-rc8/drivers/usb/serial/pl2303.c 2008-01-18 18:43:28.000000000 +0900
> @@ -65,6 +65,7 @@ static struct usb_device_id id_table []
> { USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID_2080) },
> { USB_DEVICE(MA620_VENDOR_ID, MA620_PRODUCT_ID) },
> { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID) },
> + { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
> { USB_DEVICE(TRIPP_VENDOR_ID, TRIPP_PRODUCT_ID) },
> { USB_DEVICE(RADIOSHACK_VENDOR_ID, RADIOSHACK_PRODUCT_ID) },
> { USB_DEVICE(DCU10_VENDOR_ID, DCU10_PRODUCT_ID) },

Hi. I tried RATOC REX-USB60F with pl2303 driver and got oops in
pl2303_open(). The pl2303 expects a interrupt_in endpoint but my
device does not have interrupt_in. So this line in pl2303_open()
cause oops.

port->interrupt_in_urb->dev = serial->dev;

This device works fine with the ftdi_sio driver, with "vendor=0x584
product=0xb020" module option. (0x584 is RATOC_VENDOR_ID and 0xb020
is RATOC_PRODUCT_ID_USB60F).


Is the pl2303 driver appropriate for this device?

Here is lsusb output:

Bus 001 Device 003: ID 0584:b020 RATOC System, Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0584 RATOC System, Inc.
idProduct 0xb020
bcdDevice 4.00
iManufacturer 1 RATOC Systems,Inc.
iProduct 2 USB-Serial Converter
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 2 USB-Serial Converter
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
Device Status: 0x0000
(Bus Powered)




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