Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it>
Markus Rechberger <mrechberger@gmail.com>
- Mauro Carvalho Chehab <mchehab@brturbo.com.br>
+ Mauro Carvalho Chehab <mchehab@infradead.org>
Sascha Sommer <saschasommer@freenet.de>
This program is free software; you can redistribute it and/or modify
{
int ret, byte;
+ if (dev->state & DEV_DISCONNECTED)
+ return(-ENODEV);
+
em28xx_regdbg("req=%02x, reg=%02x ", req, reg);
ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), req,
u8 val;
int ret;
+ if (dev->state & DEV_DISCONNECTED)
+ return(-ENODEV);
+
em28xx_regdbg("req=%02x, reg=%02x:", req, reg);
ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), req,
int ret;
/*usb_control_msg seems to expect a kmalloced buffer */
- unsigned char *bufs = kmalloc(len, GFP_KERNEL);
+ unsigned char *bufs;
+
+ if (dev->state & DEV_DISCONNECTED)
+ return(-ENODEV);
+
+ bufs = kmalloc(len, GFP_KERNEL);
em28xx_regdbg("req=%02x reg=%02x:", req, reg);
ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), req,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0x0000, reg, bufs, len, HZ);
- mdelay(5); /* FIXME: magic number */
+ msleep(5); /* FIXME: magic number */
kfree(bufs);
return ret;
}
return em28xx_write_regs(dev, VINCTRL_REG, "\x11", 1);
}
-int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax, u8 ymin,
- u8 ymax)
+static int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax,
+ u8 ymin, u8 ymax)
{
em28xx_coredbg("em28xx Scale: (%d,%d)-(%d,%d)\n", xmin, ymin, xmax, ymax);
return em28xx_write_regs(dev, YMAX_REG, &ymax, 1);
}
-int em28xx_capture_area_set(struct em28xx *dev, u8 hstart, u8 vstart,
+static int em28xx_capture_area_set(struct em28xx *dev, u8 hstart, u8 vstart,
u16 width, u16 height)
{
u8 cwidth = width;
return em28xx_write_regs(dev, OFLOW_REG, &overflow, 1);
}
-int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v)
+static int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v)
{
u8 mode;
/* the em2800 scaler only supports scaling down to 50% */
/******************* isoc transfer handling ****************************/
#ifdef ENABLE_DEBUG_ISOC_FRAMES
-static void em28xx_isoc_dump(struct urb *urb, struct pt_regs *regs)
+static void em28xx_isoc_dump(struct urb *urb)
{
int len = 0;
int ntrans = 0;
* em28xx_isoIrq()
* handles the incoming isoc urbs and fills the frames from our inqueue
*/
-void em28xx_isocIrq(struct urb *urb, struct pt_regs *regs)
+static void em28xx_isocIrq(struct urb *urb)
{
struct em28xx *dev = urb->context;
int i, status;
return;
#ifdef ENABLE_DEBUG_ISOC_FRAMES
if (isoc_debug>1)
- em28xx_isoc_dump(urb, regs);
+ em28xx_isoc_dump(urb);
#endif
if (urb->status == -ENOENT)