/*
 * MAX98504 ALSA SoC Audio driver
 *
 * Copyright 2011 - 2012 Maxim Integrated Products
 * Copyright 2016 Samsung Electronics Co., Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#ifndef MAX98504_H_
#define MAX98504_H_

/*
 * MAX98504 Register Definitions
 */
#define MAX98504_INTERRUPT_STATUS		0x01
#define MAX98504_INTERRUPT_FLAGS		0x02
#define MAX98504_INTERRUPT_ENABLE		0x03
#define MAX98504_INTERRUPT_FLAG_CLEARS		0x04
#define MAX98504_GPIO_ENABLE			0x10
#define MAX98504_GPIO_CONFIG			0x11
#define MAX98504_WATCHDOG_ENABLE		0x12
#define MAX98504_WATCHDOG_CONFIG		0x13
#define MAX98504_WATCHDOG_CLEAR			0x14
#define MAX98504_CLOCK_MONITOR_ENABLE		0x15
#define MAX98504_PVDD_BROWNOUT_ENABLE		0x16
#define MAX98504_PVDD_BROWNOUT_CONFIG_1		0x17
#define MAX98504_PVDD_BROWNOUT_CONFIG_2		0x18
#define MAX98504_PVDD_BROWNOUT_CONFIG_3		0x19
#define MAX98504_PVDD_BROWNOUT_CONFIG_4		0x1a
#define MAX98504_PCM_RX_ENABLE			0x20
#define MAX98504_PCM_TX_ENABLE			0x21
#define MAX98504_PCM_TX_HIZ_CONTROL		0x22
#define MAX98504_PCM_TX_CHANNEL_SOURCES		0x23
#define MAX98504_PCM_MODE_CONFIG		0x24
#define MAX98504_PCM_DSP_CONFIG			0x25
#define MAX98504_PCM_CLOCK_SETUP		0x26
#define MAX98504_PCM_SAMPLE_RATE_SETUP		0x27
#define MAX98504_PCM_TO_SPEAKER_MONOMIX		0x28
#define MAX98504_PDM_TX_ENABLE			0x30
#define MAX98504_PDM_TX_HIZ_CONTROL		0x31
#define MAX98504_PDM_TX_CONTROL			0x32
#define MAX98504_PDM_RX_ENABLE			0x33
#define MAX98504_SPEAKER_ENABLE			0x34
#define MAX98504_SPEAKER_SOURCE_SELECT		0x35
#define MAX98504_MEASUREMENT_ENABLE		0x36
#define MAX98504_ANALOGUE_INPUT_GAIN		0x37
#define MAX98504_TEMPERATURE_LIMIT_CONFIG	0x38
#define MAX98504_GLOBAL_ENABLE			0x40
#define MAX98504_SOFTWARE_RESET			0x41
#define MAX98504_REV_ID				0x7fff

#define MAX98504_MAX_REGISTER			0x7fff

#define MAX98504_DAI_ID_PCM			1
#define MAX98504_DAI_ID_PDM			2

#endif /* MAX98504_H_ */
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<div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='d9b2997e4a0a874e452df7cdd7de5a54502bd0aa'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Lukáš Lalinský &lt;lukas@oxygene.sk&gt;</td><td class='right'>2017-01-20 19:46:34 +0100</td></tr>
<tr><th>committer</th><td>Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;</td><td class='right'>2017-01-25 11:02:29 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=d9b2997e4a0a874e452df7cdd7de5a54502bd0aa'>d9b2997e4a0a874e452df7cdd7de5a54502bd0aa</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=d9b2997e4a0a874e452df7cdd7de5a54502bd0aa'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=d9b2997e4a0a874e452df7cdd7de5a54502bd0aa'>391abd808c8ad3d2e0e2ac0b769e40d88b468973</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=3ba7b7795b7e8889af1377904c55c7fae9e0c775'>3ba7b7795b7e8889af1377904c55c7fae9e0c775</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=d9b2997e4a0a874e452df7cdd7de5a54502bd0aa&amp;id2=3ba7b7795b7e8889af1377904c55c7fae9e0c775'>diff</a>)</td></tr></table>
<div class='commit-subject'>USB: Add quirk for WORLDE easykey.25 MIDI keyboard</div><div class='commit-msg'>Add a quirk for WORLDE easykey.25 MIDI keyboard (idVendor=0218,
idProduct=0401). The device reports that it has config string
descriptor at index 3, but when the system selects the configuration
and tries to get the description, it returns a -EPROTO error,
the communication restarts and this keeps repeating over and over again.
Not requesting the string descriptor makes the device work correctly.

Relevant info from Wireshark:

[...]

CONFIGURATION DESCRIPTOR
    bLength: 9
    bDescriptorType: 0x02 (CONFIGURATION)
    wTotalLength: 101
    bNumInterfaces: 2
    bConfigurationValue: 1
    iConfiguration: 3
    Configuration bmAttributes: 0xc0  SELF-POWERED  NO REMOTE-WAKEUP
        1... .... = Must be 1: Must be 1 for USB 1.1 and higher
        .1.. .... = Self-Powered: This device is SELF-POWERED
        ..0. .... = Remote Wakeup: This device does NOT support remote wakeup
    bMaxPower: 50  (100mA)

[...]

     45 0.369104       host                  2.38.0                USB      64     GET DESCRIPTOR Request STRING

[...]

URB setup
    bmRequestType: 0x80
        1... .... = Direction: Device-to-host
        .00. .... = Type: Standard (0x00)
        ...0 0000 = Recipient: Device (0x00)
    bRequest: GET DESCRIPTOR (6)
    Descriptor Index: 0x03
    bDescriptorType: 0x03
    Language Id: English (United States) (0x0409)
    wLength: 255

     46 0.369255       2.38.0                host                  USB      64     GET DESCRIPTOR Response STRING[Malformed Packet]

[...]

Frame 46: 64 bytes on wire (512 bits), 64 bytes captured (512 bits) on interface 0
USB URB
    [Source: 2.38.0]
    [Destination: host]
    URB id: 0xffff88021f62d480
    URB type: URB_COMPLETE ('C')
    URB transfer type: URB_CONTROL (0x02)
    Endpoint: 0x80, Direction: IN
    Device: 38
    URB bus id: 2
    Device setup request: not relevant ('-')
    Data: present (0)
    URB sec: 1484896277
    URB usec: 455031
    URB status: Protocol error (-EPROTO) (-71)
    URB length [bytes]: 0
    Data length [bytes]: 0
    [Request in: 45]
    [Time from request: 0.000151000 seconds]
    Unused Setup Header
    Interval: 0
    Start frame: 0
    Copy of Transfer Flags: 0x00000200
    Number of ISO descriptors: 0
[Malformed Packet: USB]
    [Expert Info (Error/Malformed): Malformed Packet (Exception occurred)]
        [Malformed Packet (Exception occurred)]
        [Severity level: Error]
        [Group: Malformed]

Signed-off-by: Lukáš Lalinský &lt;lukas@oxygene.sk&gt;
Cc: stable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=d9b2997e4a0a874e452df7cdd7de5a54502bd0aa'>Diffstat</a></div><table summary='diffstat' class='diffstat'>