I have a question regarding the callbacks in the usbaudio.c driver.
The callback is defined as: -
/*
* complete callback from data urb
*/
static void snd_complete_urb(struct urb *urb, struct pt_regs *regs)
The callback is set up with: -
u->urb->complete = snd_usb_complete_callback(snd_complete_urb);
The issue I have is that urb->complete is of type: -
struct urb;
typedef void (*usb_complete_t)(struct urb *);
struct urb
{
<snip>
usb_complete_t complete; // pointer to completion routine
<snip>
};
So, why is the "struct pt_regs *regs" there ?
I would think that
static void snd_complete_urb(struct urb *urb, struct pt_regs *regs)
should change to
static void snd_complete_urb(struct urb *urb)
Cheers
James
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