Hello All,
I have a USB driver that talks to four devices differentiated by their
minor numbers (fixed minor numbers for everyone of the devices)
In 2.4 Kernel - Probe () function :
I used devfs_register() for all the devices as follows:
for (i =0; i <= 4;i++)
{
devfs_register(usb_devfs_handle, "MyDriver",DEVFS_FL_DEFAULT,USB_MAJOR,
USBH_MINOR_BASE+i,S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP, &Fops, NULL);
}
I have this code working and planning to migrate to 2.6 kernel.
In 2.6 kernel :
When I looked into the usb-skeleton.c, it is suggested to use the
usb_register_dev() function. My problem here is this function
allocates minor numbers automatically starting from the base and I
dont have control over it ? For eg., If I plug in card 1 and then card
2, I will have minors as 64 for Card 1 and 65 for card 2. If I plug
in card 2 and then card 1, I will have minors as 64 for card 2 and 65
for card 1.
Could you please help me to fix a minor number based on the vendor ID
and product ID of a card ?
Thanks & Regards
Jayaprakash.
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