How to Handle VID/PID in Linux kernel 3.0 from userspace
Thirupathi ch
In kernel 2.6.35 in android.c file VID/PID will be provided by
platform data,But linux kernel3.0 andiord.c file default VENDOR_ID =
0x18D1, PRODUCT_ID=0x001 is hardcoded. In android.c file Line:67 from
the comment “/* Default vendor and product IDs, overridden by
userspace */” In our platform currently we are overriding PRODUCT_ID
and VENDOR_ID in the initrc file as per below.
write /sys/class/android_usb/android0/functions adb,mass_storage,acm,ecm
write /sys/class/android_usb/android0/f_acm/instances 1
write /sys/class/android_usb/android0/idProduct 0xABXX
write /sys/class/android_usb/android0/idVendor 0x12XX
write /sys/class/android_usb/android0/enable 1
When the cable is plugged in and boot the board PC Host reports
“Unknown Device”. Could you please suggest how to pass VENDOR_ID and
PRODUCT_ID from userspace so that PC driver recognizes the device
properly and installs the driver.
Regards,
Thirupathi
yingchun li
and why PC recognized your mobile as __Unknown Device__, IMO, it will use
the default PID and VID, something maybe wrong with your usb gadget driver.
> Thirupathi
>
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Leng XueDong
would you please tell me can I get the 2.6.35kernel source?many thanks