usb_string(..)

DISCUSSION Thiru Angaiyan 2 participants 2 messages Nov 5, 2002

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Thiru Angaiyan

author

2002-11-05 21:25 UTC #0 lore raw

Hi,
Is there a way to use this function “usb_string(..) from a user space application without having a kernel mode driver/equivalent.
I basically need to read the SerialNumber string of my
Usb device. I am using libusb to get iSerialNumber
(index). I am looking for some way to uniquely connect to a device when there are more than one device of same Product Id and Vendor Id exits on the system , they may be plugged/unplugged and re enumerate as new devices. I am writing a user space driver based on libusb. Any suggestion /help is appreciated.
Thanks,
Thiru

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Johannes Erdfelt

2002-11-05 23:40 UTC #1 lore raw

Quoted 4 lines · Thiru Angaiyan

Is there a way to use this function “usb_string(..) from a user space application without having a kernel mode driver/equivalent.
I basically need to read the SerialNumber string of my

Quoted 8 lines

Usb device. I am using libusb to get iSerialNumber
(index). I am looking for some way to uniquely connect to a device when there are more than one device of same Product Id and Vendor Id exits on the system , they may be plugged/unplugged and re enumerate as new devices. I am writing a user space driver based on libusb. Any suggestion /help is appreciated.

You can use libusb. Right now there is no implementation for usb_string, but you can write your own using control messages.

I'll make sure to add an implementation ASAP since it's relatively easy to do and worthwhile.