diff options
Diffstat (limited to 'drivers/media/video/usbvision/usbvision-i2c.c')
| -rw-r--r-- | drivers/media/video/usbvision/usbvision-i2c.c | 41 |
1 files changed, 19 insertions, 22 deletions
diff --git a/drivers/media/video/usbvision/usbvision-i2c.c b/drivers/media/video/usbvision/usbvision-i2c.c index cb19c84..05b1344 100644 --- a/drivers/media/video/usbvision/usbvision-i2c.c +++ b/drivers/media/video/usbvision/usbvision-i2c.c @@ -28,18 +28,18 @@ #include <linux/module.h> #include <linux/delay.h> #include <linux/init.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <linux/ioport.h> #include <linux/errno.h> #include <linux/usb.h> #include <linux/i2c.h> #include "usbvision.h" -#define DBG_I2C 1<<0 +#define DBG_I2C (1 << 0) static int i2c_debug; -module_param (i2c_debug, int, 0644); /* debug_i2c_usb mode of the device driver */ +module_param(i2c_debug, int, 0644); /* debug_i2c_usb mode of the device driver */ MODULE_PARM_DESC(i2c_debug, "enable debug messages [i2c]"); #define PDEBUG(level, fmt, args...) { \ @@ -72,8 +72,8 @@ static inline int try_write_address(struct i2c_adapter *i2c_adap, udelay(10); } if (i) { - PDEBUG(DBG_I2C,"Needed %d retries for address %#2x", i, addr); - PDEBUG(DBG_I2C,"Maybe there's no device at this address"); + PDEBUG(DBG_I2C, "Needed %d retries for address %#2x", i, addr); + PDEBUG(DBG_I2C, "Maybe there's no device at this address"); } return ret; } @@ -96,8 +96,8 @@ static inline int try_read_address(struct i2c_adapter *i2c_adap, udelay(10); } if (i) { - PDEBUG(DBG_I2C,"Needed %d retries for address %#2x", i, addr); - PDEBUG(DBG_I2C,"Maybe there's no device at this address"); + PDEBUG(DBG_I2C, "Needed %d retries for address %#2x", i, addr); + PDEBUG(DBG_I2C, "Maybe there's no device at this address"); } return ret; } @@ -143,9 +143,8 @@ static inline int usb_find_address(struct i2c_adapter *i2c_adap, else ret = try_write_address(i2c_adap, addr, retries); - if (ret != 1) { + if (ret != 1) return -EREMOTEIO; - } } return 0; } @@ -164,22 +163,20 @@ usbvision_i2c_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msgs[], int num) pmsg = &msgs[i]; ret = usb_find_address(i2c_adap, pmsg, i2c_adap->retries, &addr); if (ret != 0) { - PDEBUG(DBG_I2C,"got NAK from device, message #%d", i); + PDEBUG(DBG_I2C, "got NAK from device, message #%d", i); return (ret < 0) ? ret : -EREMOTEIO; } if (pmsg->flags & I2C_M_RD) { /* read bytes into buffer */ ret = (usbvision_i2c_read(usbvision, addr, pmsg->buf, pmsg->len)); - if (ret < pmsg->len) { + if (ret < pmsg->len) return (ret < 0) ? ret : -EREMOTEIO; - } } else { /* write bytes from buffer */ ret = (usbvision_i2c_write(usbvision, addr, pmsg->buf, pmsg->len)); - if (ret < pmsg->len) { + if (ret < pmsg->len) return (ret < 0) ? ret : -EREMOTEIO; - } } } return num; @@ -219,7 +216,7 @@ int usbvision_i2c_register(struct usb_usbvision *usbvision) sprintf(usbvision->i2c_adap.name, "%s-%d-%s", i2c_adap_template.name, usbvision->dev->bus->busnum, usbvision->dev->devpath); - PDEBUG(DBG_I2C,"Adaptername: %s", usbvision->i2c_adap.name); + PDEBUG(DBG_I2C, "Adaptername: %s", usbvision->i2c_adap.name); usbvision->i2c_adap.dev.parent = &usbvision->dev->dev; i2c_set_adapdata(&usbvision->i2c_adap, &usbvision->v4l2_dev); @@ -293,7 +290,7 @@ int usbvision_i2c_unregister(struct usb_usbvision *usbvision) i2c_del_adapter(&(usbvision->i2c_adap)); usbvision->registered_i2c = 0; - PDEBUG(DBG_I2C,"i2c bus for %s unregistered", usbvision->i2c_adap.name); + PDEBUG(DBG_I2C, "i2c bus for %s unregistered", usbvision->i2c_adap.name); return 0; } @@ -355,9 +352,9 @@ usbvision_i2c_read_max4(struct usb_usbvision *usbvision, unsigned char addr, if (i2c_debug & DBG_I2C) { int idx; - for (idx = 0; idx < len; idx++) { - PDEBUG(DBG_I2C,"read %x from address %x", (unsigned char)buf[idx], addr); - } + + for (idx = 0; idx < len; idx++) + PDEBUG(DBG_I2C, "read %x from address %x", (unsigned char)buf[idx], addr); } return len; } @@ -416,9 +413,9 @@ static int usbvision_i2c_write_max4(struct usb_usbvision *usbvision, if (i2c_debug & DBG_I2C) { int idx; - for (idx = 0; idx < len; idx++) { - PDEBUG(DBG_I2C,"wrote %x at address %x", (unsigned char)buf[idx], addr); - } + + for (idx = 0; idx < len; idx++) + PDEBUG(DBG_I2C, "wrote %x at address %x", (unsigned char)buf[idx], addr); } return len; } |