Comment 31 for bug 305968

ok, look the kernel sources: /usr/src/linux-xxxxx/drivers/usb/serial/option.c

...
  This driver exists because the "normal" serial driver doesn't work too well
  with GSM modems. Issues:
  - data loss -- one single Receive URB is not nearly enough
  - nonstandard flow (Option devices) control
  - controlling the baud rate doesn't make sense

...

#define ONDA_VENDOR_ID 0x19d2
#define ONDA_PRODUCT_MSA501HS 0x0001
#define ONDA_PRODUCT_ET502HS 0x0002
#define ONDA_PRODUCT_MT503HS 0x0200

...
#define QUALCOMM_VENDOR_ID 0x05C6
...

/* ZTE PRODUCTS */
#define ZTE_VENDOR_ID 0x19d2
#define ZTE_PRODUCT_MF628 0x0015
#define ZTE_PRODUCT_MF626 0x0031
#define ZTE_PRODUCT_CDMA_TECH 0xfffe
...

 { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
 { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0003) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0004) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0005) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0006) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0007) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0008) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0009) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x000a) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x000b) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x000c) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x000d) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x000e) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x000f) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0010) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0011) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0012) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0013) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0014) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0015) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0016) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0017) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0018) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0019) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0020) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0021) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0022) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0023) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0024) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0025) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0026) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0027) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0028) },
 { USB_DEVICE(ONDA_VENDOR_ID, 0x0029) },
 { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MT503HS) },

 { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
 { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */

 { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626) },
 { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
 { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },

ok, usb 19d2:0001 is the onda msa501hs !!!! this is a hal-info bug!!!