V4L/DVB (3575): Cxusb: fix i2c debug messages for bluebird devices
Only the Medion boxes return 0x08 after an i2c read/write. The bluebird devices do not return anything at all. This patch conditionalizes the test for the 0x08 return code to produce a warning message when using the Medion box, only. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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@ -109,7 +109,7 @@ static int cxusb_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
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break;
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if (ibuf[0] != 0x08)
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deb_info("i2c read may have failed\n");
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deb_i2c("i2c read may have failed\n");
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memcpy(msg[i+1].buf,&ibuf[1],msg[i+1].len);
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@ -123,7 +123,7 @@ static int cxusb_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
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if (cxusb_ctrl_msg(d,CMD_I2C_WRITE, obuf, 2+msg[i].len, &ibuf,1) < 0)
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break;
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if (ibuf != 0x08)
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deb_info("i2c write may have failed\n");
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deb_i2c("i2c write may have failed\n");
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}
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}
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@ -6,6 +6,8 @@
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extern int dvb_usb_cxusb_debug;
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#define deb_info(args...) dprintk(dvb_usb_cxusb_debug,0x01,args)
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#define deb_i2c(args...) if (d->udev->descriptor.idVendor == USB_VID_MEDION) \
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dprintk(dvb_usb_cxusb_debug,0x01,args)
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/* usb commands - some of it are guesses, don't have a reference yet */
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#define CMD_I2C_WRITE 0x08
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