Eric Lee / smarc-ti-linux-kernel | Embedian Git Server

b53d657d8 usb/core: use bin2bcd() for bcdDevice in RH ... Browse Code »

The kernel's version number is used as decimal in the bcdDevice field of
the RH descriptor. For kernel version v3.12 we would see 3.0c in lsusb.
I am not sure how important it is to stick with bcd values since this is
this way since we started git history and nobody complained (however back
then we reported only 2.6).

Signed-off-by: Sebastian Andrzej Siewior
Signed-off-by: Greg Kroah-Hartman

Sebastian Andrzej Siewior
2012-09-11 02:13:16 +0800

bcd.c 261 Bytes

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#include <linux/bcd.h>
#include <linux/export.h>

unsigned _bcd2bin(unsigned char val)
{
	return (val & 0x0f) + (val >> 4) * 10;
}
EXPORT_SYMBOL(_bcd2bin);

unsigned char _bin2bcd(unsigned val)
{
	return ((val / 10) << 4) + val % 10;
}
EXPORT_SYMBOL(_bin2bcd);